Srm - Odbrana

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Maloparac
M
Maloparac
Community Contributor
Quizzes Created: 2 | Total Attempts: 2,607
| Attempts: 2,490
Quiz Flashcard
SettingsSettings
Please wait...
  • 1/40 Questions
    1.      Topologija je kao na slici:Administrator je uneo sledeći niz poruka: set firewall name IZ_LAN rule 10 set firewall name IZ_LAN rule 10 action accept set firewall name IZ_LAN rule 10 source address 10.10.10.0/24 set firewall name IZ_LAN rule 10 destinacion address 192.168.1.0/24 set firewall name IZ_LAN rule 10 protocol tcp set firewall name IZ_LAN rule 10 destination port ssh,www   set firewall name IZ_LAN rule 20 set firewall name IZ_LAN rule 20 action reject set firewall name IZ_LAN rule 20 source address 10.10.10.0/24 set firewall name IZ_LAN rule 20 destination address 192.168.1.0/24   set firewall name IZ_LAN rule 30 set firewall name IZ_LAN rule 30 action accept set firewall name IZ_LAN rule 30 source address 10.10.10.0/24 set firewall name IZ_LAN rule 30 protocol tcp set firewall name IZ_LAN rule 30 destination port http,ftp,ftp-data Administrator je uneo sledeći niz poruka: set firewall name IZ_LAN rule 10 set firewall name IZ_LAN rule 10 action accept set firewall name IZ_LAN rule 10 source address 10.10.10.0/24 set firewall name IZ_LAN rule 10 destinacion address 192.168.1.0/24 set firewall name IZ_LAN rule 10 protocol tcp set firewall name IZ_LAN rule 10 destination port ssh,www   set firewall name IZ_LAN rule 20 set firewall name IZ_LAN rule 20 action reject set firewall name IZ_LAN rule 20 source address 10.10.10.0/24 set firewall name IZ_LAN rule 20 destination address 192.168.1.0/24   set firewall name IZ_LAN rule 30 set firewall name IZ_LAN rule 30 action accept set firewall name IZ_LAN rule 30 source address 10.10.10.0/24 set firewall name IZ_LAN rule 30 protocol tcp set firewall name IZ_LAN rule 30 destination port http,ftp,ftp-data - ProProfs

    1.      Topologija je kao na slici:Administrator je uneo sledeći niz poruka: set firewall name IZ_LAN rule 10 set firewall name IZ_LAN rule 10 action accept set firewall name IZ_LAN rule 10 source address 10.10.10.0/24 set firewall name IZ_LAN rule 10 destinacion address 192.168.1.0/24 set firewall name IZ_LAN rule 10 protocol tcp set firewall name IZ_LAN rule 10 destination port ssh,www   set firewall name IZ_LAN rule 20 set firewall name IZ_LAN rule 20 action reject set firewall name IZ_LAN rule 20 source address 10.10.10.0/24 set firewall name IZ_LAN rule 20 destination address 192.168.1.0/24   set firewall name IZ_LAN rule 30 set firewall name IZ_LAN rule 30 action accept set firewall name IZ_LAN rule 30 source address 10.10.10.0/24 set firewall name IZ_LAN rule 30 protocol tcp set firewall name IZ_LAN rule 30 destination port http,ftp,ftp-data Administrator je uneo sledeći niz poruka: set firewall name IZ_LAN rule 10 set firewall name IZ_LAN rule 10 action accept set firewall name IZ_LAN rule 10 source address 10.10.10.0/24 set firewall name IZ_LAN rule 10 destinacion address 192.168.1.0/24 set firewall name IZ_LAN rule 10 protocol tcp set firewall name IZ_LAN rule 10 destination port ssh,www   set firewall name IZ_LAN rule 20 set firewall name IZ_LAN rule 20 action reject set firewall name IZ_LAN rule 20 source address 10.10.10.0/24 set firewall name IZ_LAN rule 20 destination address 192.168.1.0/24   set firewall name IZ_LAN rule 30 set firewall name IZ_LAN rule 30 action accept set firewall name IZ_LAN rule 30 source address 10.10.10.0/24 set firewall name IZ_LAN rule 30 protocol tcp set firewall name IZ_LAN rule 30 destination port http,ftp,ftp-data

    • A) Odbačen zbog pravila 20.
    • B) Odbačen jer ne odgovara ni jednop opisu.
    • C) Propušten zbog pravila 30.
    • D) Propušten jer ne odgovra ni jednom opisu
Please wait...
Srm - Odbrana - Quiz

Quiz Preview

  • 2. 

     Snort je:

    • A) sistem za vođenje dnevnika i nadziranje.

    • B) sistem za detekciju i sprečavanje upada.

    • C) sistem za zaštitne barijere.

    Correct Answer
    A. B) sistem za detekciju i sprečavanje upada.
    Explanation
    Snort je sistem za detekciju i sprečavanje upada. Ova vrsta sistema se koristi za praćenje mrežnog saobraćaja i otkrivanje sumnjivih aktivnosti ili pokušaja neovlašćenog pristupa. Snort analizira mrežni saobraćaj i upoređuje ga sa unapred definisanim pravilima kako bi identifikovao potencijalne napade ili nepravilnosti. Kada se detektuje sumnjiva aktivnost, Snort može preduzeti odgovarajuće mere za sprečavanje upada, kao što je blokiranje IP adrese ili slanje upozorenja administratoru sistema.

    Rate this question:

  • 3. 

     U podrazumevanom stanju na Vindouz OS:

    • A) nadziranje je uključeno ako se prijavi korisnik iz domena

    • B) nadziranje nije uključeno.

    • C) nadziranje je uključeno ako je radna stanica u domenu.

    Correct Answer
    A. B) nadziranje nije uključeno.
    Explanation
    In the default state on Windows OS, monitoring is not enabled.

    Rate this question:

  • 4. 

    Kada podešavamo nadziranje nad direktorijumom iz sigurnosnih razloga na Vindouz operativnom sistemu

    • A) pratimo ako bilo ko (Everyone), pokuša bilo šta (Full Controll), i to ne uspe (Fall).

    • B) pratimo ako neko kao administrator (Administrators), pokuša bilo šta (Full Controll) i to ne uspe (Fall).

    • C) pratimo ako bilo ko (Everyone), pokuša brisanje (Delete) i to uspe (Success).

    Correct Answer
    A. A) pratimo ako bilo ko (Everyone), pokuša bilo šta (Full Controll), i to ne uspe (Fall).
    Explanation
    The correct answer is a) because it states that we are monitoring if anyone (Everyone) tries to do anything (Full Control) and fails (Fall). This aligns with the goal of monitoring directory access for security reasons, as we want to track any unsuccessful attempts made by anyone.

    Rate this question:

  • 5. 

    Koliko je imenovanih skupova pravila moguće imati za Vijata zaštitnoj barijeri?

    • A) Po jedan za svaki segment mreže.

    • B) Jedan za smer ka internetu i jedan za smer sa interneta.

    • C) Po tri na svakom interfejsu (in, out, local).

    • D) Po jedan na svakom interfejsu.

    Correct Answer
    A. C) Po tri na svakom interfejsu (in, out, local).
    Explanation
    The correct answer is c) Po tri na svakom interfejsu (in, out, local). This means that for each interface, there can be three named rule sets: one for incoming traffic (in), one for outgoing traffic (out), and one for locally-generated traffic (local). This allows for more granular control and customization of the firewall rules based on the direction and source of the traffic.

    Rate this question:

  • 6. 

    Kako bezicna stanica zna da pristupna tacka koristi WPA/WPA2?

    • Na osnovu deljenog kljuca koji je postavio administrator(PSK)

    • Na osnovu posebnog kanala koji se koristi (channel 6)

    • Na osnovu informacija u beacon okvirima (tagged information)

    Correct Answer
    A. Na osnovu deljenog kljuca koji je postavio administrator(PSK)
    Explanation
    The wireless station knows that the access point uses WPA/WPA2 based on the shared key (PSK) that was set by the administrator.

    Rate this question:

  • 7. 

    Da li se i na koji način u toku uspostave TLS sesije može prevariti i autentičnost klijneta?

    • A) U poruci “CertificateVerify” klijent digitalno potpiše sve razmenjene poruke i time pokaže da poseduje privatni ključ.

    • B) Klijent pošalje privatni ključ na verifikaciju.

    • C) Ukoliko klijent poseduje javni sertifikat, server može biti siguran da je kljient autentičan.

    • D) Klijent se ne može autentifikovati u toku TLS sesije sem ako se ne koriste korisnička imena i lozinke.

    Correct Answer
    A. A) U poruci “CertificateVerify” klijent digitalno potpiše sve razmenjene poruke i time pokaže da poseduje privatni ključ.
    Explanation
    The correct answer is a) In the "CertificateVerify" message, the client digitally signs all exchanged messages, demonstrating that it possesses the private key. This ensures the authenticity of the client during the establishment of the TLS session.

    Rate this question:

  • 8. 

     Kada radi kao sistem za detekciju upada (IDS):

    • A) Snort se poveže na glavni ruter i funkcioniše kao zaštitna barijera.

    • B) Snort se poveže na glavni server i prati napade na sve klijente.

    • C) Snort se poveže na ogledni (mirrored) port sviča i prati napade na čitav segment mreže.

    Correct Answer
    A. C) Snort se poveže na ogledni (mirrored) port sviča i prati napade na čitav segment mreže.
    Explanation
    When Snort is used as an Intrusion Detection System (IDS), it is connected to a mirrored port on a switch. This allows Snort to monitor and analyze network traffic on the entire network segment. By connecting to the mirrored port, Snort can detect and alert on any suspicious or malicious activity occurring within the network, providing a comprehensive view of potential attacks on the network. This setup ensures that Snort functions effectively as an IDS by monitoring all network traffic and detecting any intrusion attempts.

    Rate this question:

  • 9. 

      Da li je i kako moguće da na istom Apache serveru postoje i sajtovi koji koriste TLS sajtovi koji ne koriste TLS?

    • A) Moguće je jer ne koriste istu IP adresu

    • B) Moguće je jer ne koriste isti port.

    • C) Nije moguće je jer se radi o istoj IP adrresi.

    • D) Nije moguće je jer se koristi isti koreni direktorijum sajta (/var/www).

    Correct Answer
    A. B) Moguće je jer ne koriste isti port.
    Explanation
    It is possible for different websites to coexist on the same Apache server and use different TLS configurations because they can be accessed through different ports. Each website can be configured to listen on a specific port, and the TLS settings can be configured individually for each port. Therefore, websites can use TLS or not use TLS independently of each other based on the port they are accessed through.

    Rate this question:

  • 10. 

       U okviru konfiguracije virtuelnog host veb servera se nalazi: <Directory “/var/www/poverljivo2”> SSLVerifyClient require SSLVerifyDepth 1 </Directory> Šta je efekat ovih direktiva?

    • A) Server će prihvatiti prvi zahtev za šifrovanje koji klijent predloži.

    • B) Zahteva se verifikacija klijentovog sertifikata, odnosno autentifikacija klijenta. Taj sertifikat mora biti direktno potpisan od strane korenog sertifikacionog autoriteta.

    • C) Kada korisnik pokuša da pristupi direktorijumu “poverljivo 2”, prikazaće mu se prozor za prijavu. Moguć je samo jedan pokušaj unosa korisničkog imena i lozinke.

    • D) Klijent će morati da verifikuje server sertifikata iz prvog pokušaja.

    Correct Answer
    A. B) Zahteva se verifikacija klijentovog sertifikata, odnosno autentifikacija klijenta. Taj sertifikat mora biti direktno potpisan od strane korenog sertifikacionog autoriteta.
    Explanation
    The given configuration specifies that the virtual host web server requires client certificate verification, which means that the client's certificate needs to be authenticated. Additionally, the certificate must be directly signed by the root certificate authority. This ensures that only clients with a valid and trusted certificate are allowed access to the specified directory ("/var/www/poverljivo2").

    Rate this question:

  • 11. 

    Da bi dobio digitalni sertifikat krajnji korisnik mora da

    • A) kreira par RSA ključeva (privatni i javni) kao i zahtev, podnese zahtev za potpisivanje sertifikacionom autoritetu.

    • B) kreira par RSA ključeva (privatni i javni) kao i zahtev, podnese zahtev i ključeve za potpisivanje sertifikacionom autoritetu.

    Correct Answer
    A. A) kreira par RSA ključeva (privatni i javni) kao i zahtev, podnese zahtev za potpisivanje sertifikacionom autoritetu.
    Explanation
    To obtain a digital certificate, the end-user needs to create a pair of RSA keys (private and public) and a request, and then submit the request for signing to the certification authority. This process ensures that the end-user has a unique pair of keys and requests the certification authority to sign their certificate, providing authentication and ensuring the integrity of the certificate.

    Rate this question:

  • 12. 

    Podredjeni (subordinate) sertifikacioni autoritet je: Izaberite jedan odgovor:

    • Deo lanca poverenja; on potpisuje sertifikate krajnjim korisnicima pri cemu je njegov sertifikat potpisao koreni sertifikacioni autoritet

    • Sertifikacioni autoritet ciji je rok vaznosti istekao

    • Serftifikacioni autoritet koiji je validan ali nije od poverenja

    • Deo lanca poverenja; on potpisuje sertifikate kranjim korisnicima, pri cemu je njegov sertifikat samopotpisan

    Correct Answer
    A. Deo lanca poverenja; on potpisuje sertifikate krajnjim korisnicima pri cemu je njegov sertifikat potpisao koreni sertifikacioni autoritet
    Explanation
    A subordinate certification authority is part of the trust chain and signs certificates for end users, with its certificate being signed by the root certification authority.

    Rate this question:

  • 13. 

    Sta je od sledecih recenica tacno?

    • Privatni kljuc se moze saznati iz javnog?

    • Problem razemen kljuceva je prisutan u asimtricnoj kriptografiji?

    • Asimtericna kriptografija je sporija od simetricne

    • Ne postoji apsolutno siguran sifrarski sistem

    • Javni kljuc se koristi jednokratno

    Correct Answer
    A. Asimtericna kriptografija je sporija od simetricne
    Explanation
    The correct answer is "Asimtericna kriptografija je sporija od simetricne." This statement is true because asymmetric cryptography, which uses public and private keys, is generally slower than symmetric cryptography, which uses the same key for both encryption and decryption. This is because asymmetric encryption involves more complex mathematical operations and larger key sizes, which require more computational resources and time.

    Rate this question:

  • 14. 

    Kada se digitalni sertifikat izda korisniku, može se upotrebljavati:

    • A) do isteka lozinke korisnika, samo za asimetrično šifrovanje.

    • B) do isteka roka validnosti, i za namene koje su navedene kao „baseConstrains", „Extended Key Usage".

    • C) do isteka lozinke korisnika, i za namene koje su licencirane od komercijalnih sertifikacionih autoriteta.

    • D) do isteka roka validnosti, i za namene koje su moguće klijentskim ili serverskim programom za koje se koristi serifikat (TLS, SSL, SSH).

    Correct Answer
    A. B) do isteka roka validnosti, i za namene koje su navedene kao „baseConstrains", „Extended Key Usage".
    Explanation
    When a digital certificate is issued to a user, it can be used until its expiration date and for the purposes specified in the "baseConstrains" and "Extended Key Usage" fields. This means that the certificate can be used for the specified purposes, such as encryption, authentication, or signing, until it expires. The expiration date ensures that the certificate remains valid for a certain period of time, after which it needs to be renewed or replaced. The "baseConstrains" and "Extended Key Usage" fields define the specific purposes for which the certificate can be used, ensuring that it is only used for authorized activities.

    Rate this question:

  • 15. 

     Kada se na Vijata zaštitnoj barijeri skup pravila vezuje za interfejs potrebno je:

    • A) izabrati najosetljiviji deo mreže.

    • B) izabrati odgovarajući smer interfejsa.

    • C) izabrati interfejs sa najboljim performansama

    • D) izabrati interfejs koji je okrenut prema Internetu.

    Correct Answer
    A. B) izabrati odgovarajući smer interfejsa.
    Explanation
    When attaching a set of rules to the interface on the Protective Barrier, it is necessary to choose the appropriate direction of the interface. This means selecting the direction that aligns with the desired flow of traffic or communication. Choosing the correct direction ensures that the rules are applied effectively and the interface functions efficiently in managing network traffic.

    Rate this question:

  • 16. 
    1.      Topologija je kao na slici: Administrator želi da dozvoli samo http i ssh saobraćaja iz lokalne mreže u DMZ mrežu. Unešene su komande: set firewall name IZ_LAN rule 10 set firewall name IZ_LAN rule 10 action accept set firewall name IZ_LAN rule 10 source address 192.168.1.0/24 set firewall name IZ_LAN rule 10 destinacion address 10.10.10.0/24 set firewall name IZ_LAN rule 10 protocol tcp set firewall name IZ_LAN rule 10 destination port ssh,www set interfaces ethernet eth2 firewall in mane IZ_LAN Nakon toga klijenti ne mogu da pristupaju serverima. Šta je izazvalo problem? - ProProfs

    1.      Topologija je kao na slici: Administrator želi da dozvoli samo http i ssh saobraćaja iz lokalne mreže u DMZ mrežu. Unešene su komande: set firewall name IZ_LAN rule 10 set firewall name IZ_LAN rule 10 action accept set firewall name IZ_LAN rule 10 source address 192.168.1.0/24 set firewall name IZ_LAN rule 10 destinacion address 10.10.10.0/24 set firewall name IZ_LAN rule 10 protocol tcp set firewall name IZ_LAN rule 10 destination port ssh,www set interfaces ethernet eth2 firewall in mane IZ_LAN Nakon toga klijenti ne mogu da pristupaju serverima. Šta je izazvalo problem?

    • A) Pogrešno unešena izvorišna adresa.

    • B) Mora se uneti http, https.

    • C) Mora se navesti port 80 umesto www.

    • D) Pogrešan protokol.

    Correct Answer
    A. A) Pogrešno unešena izvorišna adresa.
    Explanation
    The problem is caused by a) incorrectly entered source address. The firewall rule is set to allow traffic from the source address 192.168.1.0/24, which represents the local network, to the destination address 10.10.10.0/24 in the DMZ network. However, if the source address is entered incorrectly, the firewall will not match any incoming traffic from the local network, resulting in the clients being unable to access the servers.

    Rate this question:

  • 17. 

     Od EAP metoda koji se koriste u bežičnim mrežama se očekuje: (više dva odgovora)

    • A) obostrana autentifikacija.

    • B) izvođenje glavnog ključa (Master Key).

    • C) šifrovanje saobraćaja.

    • C) šifrovanje saobraćaja.

    Correct Answer(s)
    A. A) obostrana autentifikacija.
    A. B) izvođenje glavnog ključa (Master Key).
    Explanation
    The expected features of the EAP method used in wireless networks include mutual authentication and derivation of the master key.

    Rate this question:

  • 18. 
    Topologija je kao na slici: Administrator želi da dozvoli da samo paketi, koji su deo uspostavljenih http konekcija, mogu da sa interneta dođu do klijenta u lokalnoj mreži. Kreira skup pravila pod nazivom SA_INTERNETA koji će biti vezan za „in“ smer interfejsa eth0. Potrebno je uneti pravila: - ProProfs

    Topologija je kao na slici: Administrator želi da dozvoli da samo paketi, koji su deo uspostavljenih http konekcija, mogu da sa interneta dođu do klijenta u lokalnoj mreži. Kreira skup pravila pod nazivom SA_INTERNETA koji će biti vezan za „in“ smer interfejsa eth0. Potrebno je uneti pravila:

    • A) set firewall name SA_INTERNETA rule 10 action accept set firewall name SA_INTERNETA rule 10 protocol tcp set firewall name SA_INTERNETA rule 10 destination port 80

    • B) set firewall name SA_INTERNETA rule 10 set firewall name SA_INTERNETA rule 10 action accept set firewall name SA_INTERNETA rule 10 state established enable set firewall name SA_INTERNETA rule 10 state related enable

    • C) set firewall name SA_INTERNETA rule 10 action accept set firewall name SA_INTERNETA rule 10 destinacion address 10.10.10.0/24 set firewall name SA_INTERNETA rule 10 protocol tcp set firewall name SA_INTERNETA rule 10 destinacion port http

    Correct Answer
    A. B) set firewall name SA_INTERNETA rule 10 set firewall name SA_INTERNETA rule 10 action accept set firewall name SA_INTERNETA rule 10 state established enable set firewall name SA_INTERNETA rule 10 state related enable
    Explanation
    The correct answer is b) because it sets the rules to allow only packets that are part of established HTTP connections to reach the client in the local network. By enabling the "state established" and "state related" options, the firewall will only accept packets that are part of an established connection or related to an established connection. This ensures that only valid HTTP traffic is allowed through the firewall. The other options (a and c) do not specify the state of the connection and do not provide the necessary filtering for HTTP traffic.

    Rate this question:

  • 19. 

    Ukoliko Bob želi da verifikuje digitalni potpis poruke koju je primio od Alise, potrebno mu je da 

    • A) sopstveni privatni ključ.

    • B) sopstveni javni ključ.

    • C) Alisin privatni ključ.

    • D) Alisin javni ključ.

    Correct Answer
    A. D) Alisin javni ključ.
    Explanation
    In order to verify a digital signature, Bob needs Alice's public key. The public key is used to verify the signature, while the private key is used to create the signature. Therefore, Bob does not need his own private key or public key, nor does he need Alice's private key. The correct answer is d) Alice's public key.

    Rate this question:

  • 20. 

    Ako se koristi WPA ili WPA2, ključevi koji se koriste za šifrovanje saobraćaja:

    • Koristi se PSK koga je podesio administrator.

    • Dogovore se u toku četvorostrukog dogovora između klijenta i radne stanice.

    • Koristi se javni ključ RADIUS servera.

    Correct Answer
    A. Dogovore se u toku četvorostrukog dogovora između klijenta i radne stanice.
    Explanation
    When using WPA or WPA2, the keys used for encrypting traffic are agreed upon during a four-way handshake between the client and the access point. This handshake involves multiple steps to establish a secure connection and exchange the necessary encryption keys.

    Rate this question:

  • 21. 

      Kompromitovani sertifikat se može povući iz upotrebe:

    • A) javnim objavljivanjem liste opozvanih sertifikata potpisane od strane sertifikacionog autoriteta.

    • B) promenom lozinke korisničkog naloga kome je izdat sertifikat.

    • C) brisanjem sertifikata iz LDAP baze sertifikata sertifikaciog autoriteta,

    • D) brisanjem privatnog ključa iz baze sertifikata sertifikacionog autoriteta.

    • E) brisanjem korisničkog naloga kome je izdat sertifikat.

    Correct Answer
    A. A) javnim objavljivanjem liste opozvanih sertifikata potpisane od strane sertifikacionog autoriteta.
    Explanation
    The correct answer is a) public disclosure of the list of revoked certificates signed by the certification authority. This means that when a certificate is compromised or no longer valid, the certification authority will publicly announce and publish a list of revoked certificates. This allows users and systems to check the list and ensure that any compromised or revoked certificates are no longer trusted. The other options listed do not involve the public disclosure of a revoked certificate list.

    Rate this question:

  • 22. 

      Sertifikat služi:

    • Za razmenu kljuceva

    • Za povrdu necije privatnog kljuca

    • Za potvrdu necijeg javnog kljuca

    • Za brze pronalazenja korisnika

    • Za cuvanje kljuceva

    Correct Answer
    A. Za potvrdu necijeg javnog kljuca
    Explanation
    The correct answer is "za potvrdu necijeg javnog kljuca" because a certificate is used to verify someone's public key. Public key certificates are used in public key cryptography, where each user has a pair of keys - a public key and a private key. The certificate includes the user's public key and is digitally signed by a trusted third party, known as a Certificate Authority (CA), to verify the authenticity of the public key. This allows users to trust that the public key belongs to the intended user and has not been tampered with.

    Rate this question:

  • 23. 

    1.      Na Vijata ruteru su unete sledeće komande: set firewall name LAN_FW rule 10 set firewall name LAN_FW rule 10 action drop set firewall name LAN_FW rule 10 protocol tcp set firewall name LAN_FW rule 10 destination port ssh set firewall name LAN_FW rule 10 state new enable set firewall name LAN_FW rule 10 recent count 3 set firewall name LAN_FW rule 10 recent time 30 set firewall name LAN_FW rule 20 set firewall name LAN_FW rule 20 action permit set firewall name LAN_FW rule 20 protocol tcp set firewall name LAN_FW destination port 22 set interfaces ethernet eth2 firewall local LAN_FW

    • Zbog pogrešnog redosleda, efektivno su zabranjene sve konekcije ka portu 22 (SSH) ka lokalnoj mreži.

    • Zabranjeno je učestano uspostavljanje konekcija ka portu 22 (SSH) na samom ruteru

    • Zbog pogrešnog redosleda, efektivno su zabranjene sve konekcije ka poru 22 (SSH) na samom ruteru.

    Correct Answer
    A. Zabranjeno je učestano uspostavljanje konekcija ka portu 22 (SSH) na samom ruteru
    Explanation
    The given configuration sets up a firewall on the router to drop TCP connections to port 22 (SSH) from the LAN network. The rule is configured to enable the tracking of recent connections, allowing a maximum of 3 connections within a 30-second time frame. This effectively restricts frequent connections to the SSH port on the router itself.

    Rate this question:

  • 24. 

    Na Vijata zaštitnoj barijeri kreiran je skup pravila za filtriranje saobraćaja. U okviru skupa postoje nekoliko ptavila koja opisuju paket koji se ispituje. Koje pravilo će odrediti kletu  sudbinu paketa?

    • A) Prvo se IP adrese, pa zatim TCP i UDP portovi.

    • B) Nije dozvoljeno da više od jednog pravila opisuje isti paket.

    • C) Gleda se isključivo redosled pravila u skupu. Prvo pravilo koje opiše paket odredi mu i sudbinu.

    • D) Gleda se pre svega preciznost poklapanja. Pravilo koje poklopi i adresu i port ima prioritet u odnosu na pravilo koje poklapa samo adresu

    Correct Answer
    A. C) Gleda se isključivo redosled pravila u skupu. Prvo pravilo koje opiše paket odredi mu i sudbinu.
    Explanation
    The correct answer is c) Gleda se isključivo redosled pravila u skupu. Prvo pravilo koje opiše paket odredi mu i sudbinu. This means that the fate of the packet is determined solely by the order of the rules in the set. The first rule that describes the packet will determine its fate.

    Rate this question:

  • 25. 

      Izbacite uljeza:

    • A) RC4.

    • B) DES.

    • C) RSA.

    • D) IDEA.

    • E) AES

    Correct Answer
    A. C) RSA.
    Explanation
    RSA is a commonly used encryption algorithm in computer security. It is a public-key encryption system that uses two keys, a public key for encryption and a private key for decryption. The RSA algorithm is based on the difficulty of factoring large numbers, making it secure against attacks. The other options, RC4, DES, IDEA, and AES, are also encryption algorithms, but they are not specifically designed for public-key encryption like RSA. Therefore, RSA is the correct answer in this case.

    Rate this question:

  • 26. 

     Kako bi Apache server moga da autentifikuje klijente u toku uspostave TLS sesije, potrebno je:

    • A) u konfiguraciju servera uključiti lokaciju forme za autentifikaciju tokom TLS (HTMLFotmFile).

    • B) u konfiguraciju servera uključiti lokaciju sertifikata sertifikacionog autoriteta koji potpisuje sertifikate. klijenata (SSLCertificateFile).

    • C) u konfiguraciju servera uključiti lokaciju fajla sa korisničkim imenima (UserNameFile).

    Correct Answer
    A. C) u konfiguraciju servera uključiti lokaciju fajla sa korisničkim imenima (UserNameFile).
    Explanation
    To authenticate clients during the establishment of a TLS session, it is necessary to include the location of a file with usernames (UserNameFile) in the server configuration. This file contains the usernames that the server will use to verify the identity of the clients. By including this file location in the configuration, the Apache server will be able to authenticate clients during the TLS session.

    Rate this question:

  • 27. 

    WPA2 koristi: (izabrati dva odgovora)

    • A) CCMP.

    • B) TKIP

    • C) RC4

    • D) AES.

    Correct Answer(s)
    A. A) CCMP.
    A. D) AES.
    Explanation
    WPA2 uses CCMP and AES. CCMP (Counter Mode with Cipher Block Chaining Message Authentication Code Protocol) is an encryption protocol that provides confidentiality, integrity, and authentication. AES (Advanced Encryption Standard) is a symmetric encryption algorithm that is widely used for securing sensitive data. Both CCMP and AES are strong encryption mechanisms that enhance the security of wireless networks.

    Rate this question:

  • 28. 

     Alisa želi da potpiše poruku kako bi Bob moga da proveri njenu autentičnost pri čemu tajnost nije problem. Alisa treba da:

    • A) kreira izvod poruke i šifruje ga sopstvenim javnim ključem.

    • B) kreira izvod poruke i šifruje ga Bobovim javnim ključem

    • C) kreira izvod poruke i šifruje ga Bobovim privatnim ključem.

    • D) kreira izvod poruke i šifruje ga sopstvenim privatnim ključem

    Correct Answer
    A. D) kreira izvod poruke i šifruje ga sopstvenim privatnim ključem
    Explanation
    Alisa treba da kreira izvod poruke i šifruje ga sopstvenim privatnim ključem kako bi Bob mogao da proveri autentičnost poruke. Korišćenje sopstvenog privatnog ključa omogućava Alisi da potpiše poruku na način koji samo ona može da uradi, jer samo ona ima pristup svom privatnom ključu. Bob će zatim moći da dešifruje poruku koristeći Alisin javni ključ i tako proveri da je poruka zaista potpisana od strane Alise.

    Rate this question:

  • 29. 

    Osnovne informacije koje digitalni sertifikat u sebi sadrži su:

    • A) javni i privatni ključ, informacije o identitetu vlasnika javnog ključa, digitalni potpisa navedenih informacija kreiran javnim ključem autoriteta kome se veruje.

    • B) javni ključ, informacije o identitetu vlasnika ključa, digitalni potpisa navedenih informacija kreiran javnim ključem autoriteta kome se veruje

    • C) javni i privatni ključ, informacije o identitetu vlasnika javnog ključa, digitalni potpisa navedenih informacija kreiran privatnim ključem autoriteta kome se veruje.

    • D) javni ključ, informacije o identitetu vlasnika ključa, digitalni potpisa navedenih informacija kreiran privatnim ključem autoriteta kome se veruje.

    Correct Answer
    A. D) javni ključ, informacije o identitetu vlasnika ključa, digitalni potpisa navedenih informacija kreiran privatnim ključem autoriteta kome se veruje.
    Explanation
    A digital certificate contains the public key, information about the owner's identity, and a digital signature of the mentioned information created by the trusted authority's private key.

    Rate this question:

  • 30. 

     Ako je mrežna barijera sa uspostavom stanja veze (statefull firewall):

    • A) paket se može tretirati drugačije ako je deo već uspostavljene veze.

    • B) barijera zapisuje u dnevnik događaja sve uspostavljene veze.

    • C) klijent mora da uspostavi TCP vezu sa barijerom pre slanja paketa.

    Correct Answer
    A. A) paket se može tretirati drugačije ako je deo već uspostavljene veze.
    Explanation
    In a stateful firewall, packets can be treated differently if they are part of an already established connection. This means that the firewall keeps track of the state of the connection and can make decisions based on the previous packets exchanged between the client and the server. This allows for more granular control and better security as the firewall can analyze the context of the packets and apply specific rules or policies based on the established connection.

    Rate this question:

  • 31. 

    Kada na vindouz operativnom sistemu nadziremo pristup direktorijumu potrebno je:

    • Ukljuciti odgovarajucu kategoriju

    • Podesiti pracjenje na samom objektu

    • Ukljuciti odgovarajucu kategoriju i podesitit pracjenje nad samim objektnom

    Correct Answer
    A. Podesiti pracjenje na samom objektu
    Explanation
    The explanation for the given correct answer is that when monitoring access to a directory on the Windows operating system, it is necessary to set the auditing on the object itself. This means enabling the appropriate category of auditing and configuring it specifically for the object in question. By doing so, any access to the directory will be tracked and recorded for monitoring and security purposes.

    Rate this question:

  • 32. 

    Kako klijent moze biti siguran da komunicira sa autenticnim serverom u toku uspostave TLS sesije?

    • Na osnovu autentifikacije korisnickim imenom i lozinkom

    • Na osnovu jedinstvene javne IP adrese koja je dodeljena serveru

    • Na osonovu digitalnog sertifikata servera sa kojim se vrsi dogovor

    • Na osnovu unapred dodeljenog kljuca(PSK)

    Correct Answer
    A. Na osonovu digitalnog sertifikata servera sa kojim se vrsi dogovor
    Explanation
    The client can be sure that they are communicating with an authentic server during the establishment of a TLS session based on the server's digital certificate with which the negotiation is being done. The digital certificate serves as a form of identification for the server, verifying its authenticity and ensuring secure communication between the client and the server.

    Rate this question:

  • 33. 

    Snort pravila sadrze Izaberite jedan odgovor

    • Spisak poznatih napada i anomalija u saobracjaju

    • Spisak legitimnih klijenata i servera

    • Spisak poznatih spamera i njihovih adresa

    • Spisak dozvoljenih brojeva portova

    Correct Answer
    A. Spisak dozvoljenih brojeva portova
    Explanation
    The correct answer is "Spisak dozvoljenih brojeva portova" because Snort rules contain a list of allowed port numbers. Snort is an intrusion detection system that monitors network traffic and compares it against a set of rules to detect and prevent malicious activity. By having a list of allowed port numbers, Snort can filter out any traffic that does not match the specified ports, ensuring that only legitimate network traffic is allowed through.

    Rate this question:

  • 34. 

    U bežičnim mrežama, prema novoj verziji standarda iz 2007. godine, 802.1x se koristi kao: (izabrati dva odgovora)

    • A) okvir za dogovor oko mehanizma za autentifikaciju.

    • B) mehanizam za kontrolu pristupa portovima.

    • C) algoritam za šifrovanje.

    • D) algoritam za izračunavanje vrednosti za proveru autentičnosti poruke.

    Correct Answer(s)
    A. A) okvir za dogovor oko mehanizma za autentifikaciju.
    A. B) mehanizam za kontrolu pristupa portovima.
    Explanation
    In wireless networks, according to the new version of the standard from 2007, 802.1x is used as a framework for negotiating the authentication mechanism and as a mechanism for controlling access to ports. It is not used as an encryption algorithm or for calculating authenticity check values.

    Rate this question:

  • 35. 

    Na Vijata ruteru konfigurisanom kao zaštitna barijera, pojedinačna pravila za filtriranje saobraćaja sadrže:

    • A) DNS ime i adresu servera iklijenata

    • B) smer saobraćaja i naziv interfejsa.

    • C) opis saobraćaja i akciju nad njim.

    Correct Answer
    A. C) opis saobraćaja i akciju nad njim.
    Explanation
    The correct answer is c) because individual traffic filtering rules in a security barrier router typically include a description of the traffic and the action to be taken on it. This allows the router to determine how to handle specific types of traffic based on their description and perform the appropriate action, such as allowing or blocking the traffic. The DNS name and address of server clients (option a) and the direction of traffic and interface name (option b) may be considered in some filtering rules, but they are not the primary factors in determining the action to be taken on the traffic.

    Rate this question:

  • 36. 

    1.      Slabost WPA-WPA2 zaštite su: (izabrati dva odgovora)

    • A) poruke o asocijaciji i disasocijaciji nisu zaštićene niti potvrđeno autntične.

    • B) ukoliko se uhvati četvorostruki dogovor moguć je rečnički napad na jednostavni PSK.

    • C) inicijalizacioni vektor je samo 24 bita i nije zaštićen.

    • D) koristi se samo RC4 šifrovanje i CRC za proveru autentičnosti poruka.

    Correct Answer(s)
    A. A) poruke o asocijaciji i disasocijaciji nisu zaštićene niti potvrđeno autntične.
    A. B) ukoliko se uhvati četvorostruki dogovor moguć je rečnički napad na jednostavni PSK.
    Explanation
    The weakness of WPA-WPA2 protection is that the messages of association and disassociation are not protected or verified as authentic. Additionally, if a quadruple handshake is captured, a dictionary attack on a simple PSK (Pre-Shared Key) is possible.

    Rate this question:

  • 37. 

    U mrezi u kojoj se koristi interna infrastruktura javnih kljuceva sa internim korenim sertifikacionim autoritetom, novi racunari imaju problema da verifikuju sertifikate dva veb servera i uspostave TLS sesiju? Sta je potrebno uraditi kako bi se resio problem?

    • Uvesti sertifikate ta dva servera na problematicnim radnim stanicama?

    • Uvesti sertifikate internog sertifikacionog autoriteta na problematicnim radnim stanicama?

    • Uvesti zastitnu barijeru na problematicnim radnim stanicama da dozvole port 443?

    • Uvesti sertifikate i privatne kljuceve ta dva servera na problematicnim radnim stanicama?

    Correct Answer
    A. Uvesti sertifikate internog sertifikacionog autoriteta na problematicnim radnim stanicama?
    Explanation
    To solve the problem, it is necessary to introduce the certificates of the internal certification authority on the problematic workstations. This will allow the workstations to verify the certificates of the two web servers and establish a TLS session.

    Rate this question:

  • 38. 

      Koraci u podešavanju TLS virtuelnog hosta na Apache serveru: (izabrati 3 odgovora)

    • A) omogućiti apache serveru da sluša i na portu 443.

    • B) podesiti redirekciju portova sa porta 80 na 443 (SSLredirection on).

    • C) podesiti IPSec (RequireIPSec on).

    • D) kreirati virtuelni host i šifrovati koreni direktorijum sajta (/var/www).

    • E) kreirati virtuelni host koji sluša na portu 443 i koji ima direktivu SSLEngine on.

    • F) osposobiti modul mod_ssl.

    Correct Answer(s)
    A. A) omogućiti apache serveru da sluša i na portu 443.
    A. E) kreirati virtuelni host koji sluša na portu 443 i koji ima direktivu SSLEngine on.
    A. F) osposobiti modul mod_ssl.
    Explanation
    To set up a TLS virtual host on an Apache server, the correct steps are as follows:
    a) Enable the Apache server to listen on port 443.
    e) Create a virtual host that listens on port 443 and has the directive SSLEngine on.
    f) Enable the mod_ssl module.

    In order to establish a TLS (Transport Layer Security) virtual host, the Apache server needs to listen on port 443, which is the default port for HTTPS connections. Additionally, a virtual host needs to be created specifically for port 443 and configured with the SSLEngine directive to enable SSL/TLS encryption. Lastly, the mod_ssl module must be enabled to provide the necessary SSL functionality.

    Rate this question:

  • 39. 

    Šta nije deo sertifikata? (izabrati 5 stavki)

    • A) Korisničko ime i lozinka.

    • B) Javni ključ (modulus i eksponent) predmeta sertifikovanja.

    • C) IP adresa i ime hosta sertifikacionog autoriteta.

    • D) Period validnosti sertifikata.

    • E) Potpis svih navedenih informacija (SHA1 izvod šifrovan RSA javnim ključem sertifikacionog

    • F) ograničenja i namena sertifikata.

    • G) IP adresa i ime hosta predmeta sertifikata.

    • H) Izdavač (Issuer) i predmet sertifikata (Subject).

    • I) Verzija i serijski broj.

    Correct Answer(s)
    A. A) Korisničko ime i lozinka.
    A. C) IP adresa i ime hosta sertifikacionog autoriteta.
    A. E) Potpis svih navedenih informacija (SHA1 izvod šifrovan RSA javnim ključem sertifikacionog
    A. G) IP adresa i ime hosta predmeta sertifikata.
    A. I) Verzija i serijski broj.
    Explanation
    The given answer is correct because the items listed in a), c), e), g), and i) are not part of a certificate. The certificate typically includes information such as the public key, validity period, issuer and subject, version, and serial number. The items mentioned in the correct answer, such as username and password, IP address and hostname of the certification authority, signature of the information, IP address and hostname of the subject of the certificate, and version and serial number, are not included in a certificate.

    Rate this question:

  • 40. 

    Na Vijata ruteru, koraci u kreiranju zaštitne barijere su: (izabrati tri odgovora)

    • A) kreirani skup poavila poimeniti na odrećeni smer intrfejsa.

    • B) određivanje interfejsa koji šalju ICMP unreachable poruke.

    • C) podesiti nadziranje saobraćaja i zapisivanje u dnevnik događaja.

    • D) kreirati skup pravila sa razumljivim imenom.

    • E) unutar skupa pravila kreirati pojedninačna pravila za filtriranje saobraćaja.

    • F) određivanje interfejsa koji propuštaju sav saobraćaj i niterfejsa koji ga blokira.

    Correct Answer(s)
    A. A) kreirani skup poavila poimeniti na odrećeni smer intrfejsa.
    A. E) unutar skupa pravila kreirati pojedninačna pravila za filtriranje saobraćaja.
    A. F) određivanje interfejsa koji propuštaju sav saobraćaj i niterfejsa koji ga blokira.
    Explanation
    The correct answer choices for creating a protective barrier on a router are:
    a) Naming the created rule set after a specific interface direction. This helps in organizing and identifying the rules based on the interface they are associated with.
    e) Creating individual rules within the rule set to filter traffic. This allows for specific filtering of traffic based on different criteria.
    f) Determining the interfaces that allow all traffic and the interfaces that block it. This helps in controlling the flow of traffic through the router.

    Rate this question:

Quiz Review Timeline (Updated): Jul 22, 2024 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jul 22, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 22, 2014
    Quiz Created by
    Maloparac
Back to Top Back to top
Advertisement