Ipt - Ispit 2. Deo

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  • 1/212 питања

    Maksimalna dužina IPv4 paketa je:

    • 65 535 bajtova
    • 30 767 bajtova
    • 131 869 bajtova
    • 262 143 bajtova
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  • 2. 

    Ako kroz mrežu prolazi 1024, 2048 i 4096 bajtova, a 8192 bajta izaziva kašnjenje, prozor zagušenja biće podešen na:

    • 1024 bajtova da bi se izbeglo zagušenje

    • 2048 bajtova pa se povećava na 4096 bajtova

    • 4096 bajtova da bi se izbeglo zagušenje

    • 8192 bajta, pa ako se ponovi kašnjenje smanjuje se na 4096 bajtova

    Correct Answer
    A. 4096 bajtova da bi se izbeglo zagušenje
    Explanation
    The correct answer is 4096 bytes to avoid congestion. This is because the given information states that when 8192 bytes are transmitted, it causes delay. Therefore, to prevent congestion, the congestion window size should be set to a value lower than 8192 bytes. Among the options provided, only 4096 bytes is lower than 8192 bytes, so it is the correct choice.

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  • 3. 

    Koja od navedenih IPv6 adresa nije ispravna?

    • 2001:0DB8:ACAD::1

    • FE80::1

    • 2001:DB8:ACAD:1:1234:5678:ABCD:9EF

    • 2001:::DB8:1234:FE00

    Correct Answer
    A. 2001:::DB8:1234:FE00
    Explanation
    The given IPv6 address "2001:::DB8:1234:FE00" is not valid because it contains three consecutive colons ":::" which is not allowed in IPv6 addressing. The correct format for IPv6 address is to have at most one set of consecutive colons "::" to represent multiple consecutive groups of zeros.

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  • 4. 

    Koliko maksimalno rutera može da pređe paket u RIPv1 mrežama?

    • 16

    • 100

    • 10

    • 15

    Correct Answer
    A. 15
    Explanation
    In RIPv1 networks, the maximum number of routers a packet can pass through is 15. This is because RIPv1 uses a hop count metric, which means that each router that the packet passes through increments the hop count by 1. Since the hop count field in the packet is 8 bits long, it can represent a maximum value of 255. However, RIPv1 reserves certain hop counts for special purposes, such as 0 for the local network and 16 for unreachable networks. Therefore, the maximum number of routers a packet can pass through is 15.

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  • 5. 

    Kolika je dužina adresnog polja IPv6 protokola?

    • 16 bita

    • 32 bita

    • 64 bita

    • 128 bita

    Correct Answer
    A. 128 bita
    Explanation
    The length of the address field in the IPv6 protocol is 128 bits. IPv6 was developed as the successor to IPv4 in order to address the limited number of available addresses. By increasing the address field to 128 bits, IPv6 can provide a significantly larger address space, allowing for a virtually unlimited number of unique addresses. This increased address space is necessary to accommodate the growing number of devices connected to the internet.

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  • 6. 

    Ruter:

    • Analizira svoju IP adresu

    • Prosleđuje paket bez provere IP adrese

    • Ne znam

    • Analizira IP adresu odredišta

    Correct Answer
    A. Analizira IP adresu odredišta
    Explanation
    The correct answer is "Analizira IP adresu odredišta." This is because the word "analizira" means "analyzes" and "IP adresa odredišta" means "destination IP address" in Croatian. Therefore, the correct answer implies that Ruter analyzes the destination IP address.

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  • 7. 

    Transportna celina izvršava ACTIVE OPEN primitivu:

    • Slanjem SYN TPDU

    • Slanjem ACK TPDU

    • Slanjem FIN TPDU

    • Slanjem CONNECT CONFIRM NPDU

    Correct Answer
    A. Slanjem SYN TPDU
    Explanation
    The correct answer is "Slanjem SYN TPDU." In the context of transport units, the term "ACTIVE OPEN" refers to the process of initiating a connection between two transport entities. The SYN TPDU (Transport Protocol Data Unit) is sent by the active opener to the passive opener to establish a connection. This TPDU contains synchronization information and is used to negotiate various parameters required for the connection setup. Therefore, sending the SYN TPDU is the correct action for the transport entity to perform during the ACTIVE OPEN primitive.

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  • 8. 

    Kolika je dužina IPv6 adresnog polja?

    • 8 bita

    • 128 bita

    • 32 bita

    • 64 bita

    Correct Answer
    A. 128 bita
    Explanation
    IPv6 addresses are 128 bits long. This is a significant increase from the 32-bit length of IPv4 addresses. The longer length allows for a much larger number of unique addresses, which is necessary to accommodate the growing number of devices connected to the internet. The increased address space also provides additional features and improvements over IPv4, such as simplified address assignment and better support for mobile networks.

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  • 9. 

    Gornja granica predajnog otvora prozora postavlja se:

    • Kada se dobije kredit

    • Kada se pošalju svi paketi

    • Kada se odbace paketi

    • Kada se vrši ponovno slanje

    Correct Answer
    A. Kada se dobije kredit
    Explanation
    The upper limit of the transmission window is set when credit is received. This means that the sender can only transmit a certain amount of data until it receives credit, indicating that the receiver is ready to accept more data. Once credit is received, the sender can continue transmitting within the limits of the transmission window.

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  • 10. 

    Klasa C na prva tri mesta ima:

    • 010

    • 101

    • 001

    • 110

    Correct Answer
    A. 110
    Explanation
    The answer "110" represents the top three positions in Class C. Each digit in the answer corresponds to a position, with "1" indicating that the position is occupied and "0" indicating that it is not. In this case, the first position is occupied, the second position is occupied, and the third position is not occupied.

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  • 11. 

    Pojam „brojanje do beskonačnosti“ je vezan za:

    • Algoritam vektora udaljenosti

    • Algoritam stanja veze

    • Algoritam izvorišnog rutiranja

    • Spanning Tree algoritam

    Correct Answer
    A. Algoritam vektora udaljenosti
    Explanation
    The term "counting to infinity" is associated with the Distance Vector algorithm. This algorithm is used in computer networks to determine the shortest path between nodes. In this algorithm, each node maintains a table that contains the distance to all other nodes in the network. When a node receives an update from a neighboring node, it updates its table accordingly. However, if there is a loop in the network, the distance values can keep increasing indefinitely, hence the term "counting to infinity". The algorithm uses a technique called "split horizon" to prevent this issue.

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  • 12. 

    Šta je port?

    • Port je MAC ime za Media Access Point

    • Port je TCP ime za Transport Service Access Point

    • Port je IP ime za Network Service Access Point

    • Port je LLC ime za Link Level Service Access Point

    Correct Answer
    A. Port je TCP ime za Transport Service Access Point
    Explanation
    A port is a TCP (Transmission Control Protocol) term used to refer to a Transport Service Access Point. TCP is a protocol used for establishing and maintaining network connections, and it uses ports to identify specific applications or services running on a device. Therefore, the correct answer is "Port je TCP ime za Transport Service Access Point."

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  • 13. 

    Gornja granica predajnog otvora prozora postavlja se:

    • Kada se dobije kredit

    • Kada se pošalju svi paketi

    • Kada se odbace paketi

    • Kada se vrši ponovno slanje

    Correct Answer
    A. Kada se dobije kredit
    Explanation
    The upper limit of the transmission window is set when credit is received.

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  • 14. 

    Na samom početku transportna celina se nalazi u sledećem stanju

    • ESTABLISHED

    • CLOSE

    • LISTEN

    • FIN WAIT

    Correct Answer
    A. CLOSE
    Explanation
    The given correct answer is "CLOSE". In the given statement, the transport unit is in the "CLOSE" state at the beginning. This state indicates that the transport unit has closed the connection and is not actively transmitting or receiving data.

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  • 15. 
    Na slici je prikazano: - ProProfs

    Na slici je prikazano:

    • Zaglavlje IPv6 protokola

    • Zaglavlje IPv3 protokola

    • Zaglavlje IPv4 protokola

    • Zaglavlje IPv5 protokola

    Correct Answer
    A. Zaglavlje IPv6 protokola
    Explanation
    The correct answer is "Zaglavlje IPv6 protokola" which translates to "Header of IPv6 protocol" in English. The image is showing the header of the IPv6 protocol, which is used for internet communication. IPv6 is the latest version of the Internet Protocol and is designed to replace IPv4. It provides a larger address space and improved security features compared to IPv4.

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  • 16. 
    Posle koliko koraka E postaje radni čvor? - ProProfs

    Posle koliko koraka E postaje radni čvor?

    • 1

    • 4

    • 3

    • 2

    Correct Answer
    A. 2
  • 17. 

    Koji od zapisa bi se mogao koristiti kao komprimovani zapis sledeće IPv6 adrese:
    • 2001:0000:0DB8:1101:0000:0000:0000:0020?

    • 2001:0:0DB8:1101:::0020

    • 2001:0:DB8:1101::20

    • 2001::0DB8:1101::0020

    • Ova adresa ne može da se zapiše u komprimovanom obliku

    Correct Answer
    A. 2001:0:DB8:1101::20
    Explanation
    The given correct answer is 2001:0:DB8:1101::20. This is because it follows the correct format for compressing IPv6 addresses. The consecutive zeros in the address can be replaced with a double colon (::) to shorten the address. In this case, the consecutive zeros after "1101" are replaced with "::", resulting in the compressed form 2001:0:DB8:1101::20.

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  • 18. 

    Čemu služe protokoli za rutiranje?

    • Omogućavaju metode za kodiranje i dekodiranje bita

    • Omogućavaju ruterima da međusobno dele informacije o dostupnim mrežama

    • Omogućavaju metode za segmentaciju i sastavljanje paketa

    • Za održavanje MAC tabela

    • Za održavanje ARP tabela

    Correct Answer
    A. Omogućavaju ruterima da međusobno dele informacije o dostupnim mrežama
    Explanation
    Protokoli za rutiranje služe ruterima da međusobno dele informacije o dostupnim mrežama. Ovi protokoli omogućavaju ruterima da razmenjuju informacije o najboljim putanjama do odredišnih mreža, tako da mogu efikasno rutirati podatke kroz mrežu. To omogućava ruterima da donose informisane odluke o tome kojim putem da proslede podatke i kako da optimizuju rutiranje u mreži.

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  • 19. 

    Algoritam za izračunavanje najkraćeg puta kod rutera je:

    • Nagle

    • Dijkstra

    • Jacobson

    • Spanning Tree

    Correct Answer
    A. Dijkstra
    Explanation
    Dijkstra's algorithm is a well-known algorithm used for finding the shortest path in a graph. It starts from a source node and iteratively explores the neighboring nodes, updating the shortest distance to each node as it progresses. This algorithm guarantees finding the shortest path in a graph with non-negative edge weights. Therefore, Dijkstra's algorithm is the correct answer for the given question about the algorithm used for calculating the shortest path in a router.

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  • 20. 
    U kojoj od pozicija će biti prozor na prijemnoj stanici posle uspešnog prijema segmenata sa rednim brojem 1, 2 i 3? - ProProfs

    U kojoj od pozicija će biti prozor na prijemnoj stanici posle uspešnog prijema segmenata sa rednim brojem 1, 2 i 3?

    • V)

    • B)

    • A)

    Correct Answer
    A. A)
    Explanation
    The correct answer is a) because the window at the receiving station will move to the next position after successfully receiving each segment. Since segments with sequence numbers 1, 2, and 3 have been successfully received, the window will move to the next position, which is a.

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  • 21. 

    Zašto postoje dve IPv6 adrese globalnog opsega?

    • Stanica ima dva adaptera

    • Jedna se koristi samo dok administrator ručno ne podesi drugu

    • Jedna je generisana na osnovu EUI – 64 a druga nasumično

    • Jedna je statička a druga dinamička

    Correct Answer
    A. Jedna je generisana na osnovu EUI – 64 a druga nasumično
    Explanation
    The reason why there are two IPv6 global scope addresses is because one is generated based on EUI-64 (Extended Unique Identifier) and the other is generated randomly. This allows for more flexibility and security in assigning IP addresses to devices. The EUI-64 based address provides a unique identifier based on the device's MAC address, while the randomly generated address adds an extra layer of randomness to enhance security.

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  • 22. 

    Kod IPv6 protokola, brodkast je na identican način implementiran kao i kod IPv4 protokola?

    • Tačno

    • Netačno

    Correct Answer
    A. Netačno
    Explanation
    The correct answer is "Netačno" (False). In the IPv6 protocol, the implementation of broadcast is not identical to the IPv4 protocol. In IPv4, broadcast is achieved by sending a packet to the broadcast address, which is a special address that represents all devices on the network. However, in IPv6, the concept of broadcast is replaced by multicast, where packets are sent to a specific group of devices instead of all devices on the network. Therefore, the implementation of broadcast is different in IPv6 compared to IPv4.

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  • 23. 

    Adresa aplikacionog korisnika određena je jednoznačno:

    • Parom MAC i mrežne adrese

    • Parom fizičke i mrežne adrese

    • Parom mrežne i MAC adrese

    • Parom transportne i mrežne adrese

    Correct Answer
    A. Parom transportne i mrežne adrese
    Explanation
    The address of an application user is determined uniquely by the pair of transport and network addresses.

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  • 24. 

    Koje sve vrste adresiranja podržava IPv6?

    • Unikast, enikast, multikast i brodkast

    • Enikast, multikast i brodkast

    • Unikast, multikast i brodkast

    • Unikast, enikast i multikast

    Correct Answer
    A. Unikast, enikast i multikast
  • 25. 

    Klasa B na prva dva mesta ima:

    • 11

    • 1, a drugo mesto nije važno

    • 0, a drugo mesto nije važno

    • 10

    Correct Answer
    A. 10
    Explanation
    The correct answer is 10 because the question states that "Klasa B na prva dva mesta ima" which translates to "Class B has on the first two places." Since the second place is not important, we only need to consider the first place, which is 1. Therefore, the correct answer is 10.

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  • 26. 

    Koje svojstvo eternet rama dovodi do emisione oluje?

    • Eternet ram koristi fizičku adresu umesto logičke adrese

    • Eternet ram koristi FF:FF:FF:FF:FF:FF kao brodkast adresu umesto 255.255.255.255

    • Eternet ram nema TTL polje IP paketa

    • Ne znam

    Correct Answer
    A. Eternet ram nema TTL polje IP paketa
    Explanation
    Ethernet RAM (Random Access Memory) not having a TTL (Time to Live) field in IP packets can lead to the emission storm. The TTL field in an IP packet specifies the maximum number of hops (routers) the packet can travel before being discarded. Without this field, packets can circulate indefinitely in the network, causing a broadcast storm.

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  • 27. 

    Da bi ukazali ruteru da ne treba da vrši deobu paketa:

    • Polje DF u IP zaglavlju se postavi na vrednost 1

    • Polje MF u IP zaglavlju se postavi na vrednost 0

    • Polje DF u IP zaglavlju se postavi na vrednost 0

    • Polje MF u IP zaglavlju se postavi na vrednost 1

    Correct Answer
    A. Polje DF u IP zaglavlju se postavi na vrednost 1
    Explanation
    To indicate to the router that packet fragmentation should not be performed, the DF (Don't Fragment) field in the IP header is set to a value of 1. This tells the router not to fragment the packet and instead discard it if it cannot be forwarded without fragmentation. The MF (More Fragments) field is not relevant in this case as it is used to indicate whether there are more fragments of the original packet.

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  • 28. 

    Klasa A na prva dva mesta ima:

    • 10

    • 1, a drugo mesto nije važno

    • 00

    • 0, a drugo mesto nije važno

    Correct Answer
    A. 0, a drugo mesto nije važno
    Explanation
    The correct answer is "0, a drugo mesto nije važno" because the given information states that in Klasa A, the first two positions have a value of 10 and the second position is not important. This means that the second position can be any value, and in this case, it is 0.

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  • 29. 

    Ukoliko dva korisnika istovremeno pokušavaju da uspostave vezu:

    • Uspostavlja se jedna veza označena sa (x,y)

    • Obe veze se raskidaju

    • Uspostavlja se ona veza koja ima postavljen URG bit

    • Uspostavlja se ona veza koja ima postavljen PUSH bit

    Correct Answer
    A. Uspostavlja se jedna veza označena sa (x,y)
    Explanation
    When two users simultaneously attempt to establish a connection, a single connection marked as (x, y) is established. This means that only one connection is allowed to be established at a time. The other connections are then terminated. The establishment of the connection is determined by the presence of certain flags. In this case, the connection with the URG (Urgent) bit set is established first. If there is no connection with the URG bit set, then the connection with the PUSH bit set is established.

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  • 30. 

    Koji od sledećih uslova mora biti ispunjen da bismo rekli da je mreža konvergirala?

    • Ruteri u mreži treba da imaju usaglašene MAC tabele

    • Ruteri u mreži treba da imaju iste tabele rutiranja

    • Ruteri u mreži treba da imaju usaglašene informacije u tabelama rutiranja

    • Na ruterima u mreži su konfigurisani dinamički protokoli za rutiranje

    Correct Answer
    A. Ruteri u mreži treba da imaju usaglašene informacije u tabelama rutiranja
    Explanation
    In order to say that a network has converged, routers in the network need to have consistent information in their routing tables. This means that all routers in the network should have the same information about the available paths and destinations in order to make efficient routing decisions. Having consistent information in the routing tables ensures that the network is operating optimally and that all routers are aware of the same routes. This allows for effective communication and data transfer within the network.

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  • 31. 

    Opis protokola za rutiranje je: Šalje periodična ažuriranja - Koristi broj skokova kao metriku - 15 je maksimalan broj skokova u mreži. Ovo je primer za:

    • Rutiranje na osnovu preplavljivanja

    • Hijerarhijsko rutiranje

    • Rutiranje na osnovu vektora udaljenosti

    • Rutiranje pomoću protokola stanja veze

    Correct Answer
    A. Rutiranje na osnovu vektora udaljenosti
    Explanation
    The given description states that the protocol for routing sends periodic updates, uses the number of hops as a metric, and has a maximum of 15 hops in the network. These characteristics align with the Distance Vector Routing protocol, where routers exchange information about their distance or number of hops to reach a destination. Therefore, the correct answer is "Rutiranje na osnovu vektora udaljenosti" which translates to "Routing based on distance vector" in English.

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  • 32. 

    Kod hijerarhijskog rutiranja:

    • Ruteri su podeljeni u hijerarhijske slojeve prema OSI slojevima

    • Ruteri su podeljeni u regije. Ruteri ne znaju detalje o strukturi drugih regija

    • Ne znam

    • Ruteri su podeljeni u zone prema broju suseda. Informacije sa ruterima su predstavljene sa po jednim ruterom

    Correct Answer
    A. Ruteri su podeljeni u regije. Ruteri ne znaju detalje o strukturi drugih regija
    Explanation
    The correct answer is "Ruteri su podeljeni u regije. Ruteri ne znaju detalje o strukturi drugih regija." This means that routers are divided into regions and routers within a region do not have knowledge about the structure of other regions. This hierarchical routing allows for better scalability and efficiency in large networks by dividing them into smaller manageable units. Each region can have its own routing policies and can be managed independently, which helps in reducing the complexity of the overall network.

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  • 33. 

    Izvorišni i odredišni port su polja veličine:

    • 32 bita

    • 24 bita

    • 16 bita

    • 8 bita

    Correct Answer
    A. 16 bita
    Explanation
    The source and destination ports in computer networking are fields that identify the specific application or service running on a device. These ports are used to establish a connection between two devices and facilitate the exchange of data. In this case, the correct answer is 16 bits, which means that the fields for both the source and destination ports are 16 bits in size. This allows for a maximum of 65,536 unique port numbers, which is sufficient for most networking purposes.

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  • 34. 

    Transportna veza može da pređe u stanje ESTABLISHED iz sledećih stanja

    • CLOSED

    • LISTEN

    • DR WAIT

    • FIN WAIT

    Correct Answer
    A. LISTEN
    Explanation
    The correct answer is "LISTEN" because in the TCP connection establishment process, the initial state for a transport connection is "LISTEN". In this state, the server is waiting for a client to send a connection request. Once the server receives the request, it can transition to the "ESTABLISHED" state, indicating that the connection has been successfully established and data can be exchanged between the client and server. The other states mentioned (CLOSED, DR WAIT, FIN WAIT) are not directly related to the transition to the "ESTABLISHED" state.

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  • 35. 

    Ko unosi oznaku toka u zaglavlje IPv6 paketa?

    • Odredišni host

    • IPv6 ruteri

    • Ne znam

    • Izvorišni host

    Correct Answer
    A. Izvorišni host
    Explanation
    The correct answer is "Izvorišni host". In the header of an IPv6 packet, the source host is responsible for inserting the flow label, which is used to identify a specific flow of packets. This flow label helps in providing special handling for packets belonging to the same flow, such as quality of service (QoS) treatment. Therefore, the source host is the one who inserts the flow label in the header of the IPv6 packet.

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  • 36. 

    Koja od navedenih IPv6 adresa spada u adrese lokalne veze (link – local)?

    • FEC0:0DB8::10

    • FE80::1

    • 2001:DB8:ACAD::1

    • FC00:1234:FE

    Correct Answer
    A. FE80::1
    Explanation
    The IPv6 address FE80::1 is the correct answer because it falls within the range of link-local addresses. Link-local addresses are used for communication within a single network segment and are automatically assigned to interfaces when no other address is available. The FE80::/10 prefix is reserved for link-local addresses, making FE80::1 a valid choice. The other options, FEC0:0DB8::10, 2001:DB8:ACAD::1, and FC00:1234:FE, do not fall within the range of link-local addresses.

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  • 37. 

    ARP protokol se koristi da bi se:

    • Da bi ruter obavestio odredišni računar da ima podatke koje treba da mu isporuči

    • Pronašla nepoznata IP adresa stanice, kada je poznata njena MAC adresa

    • Pronašla nepoznata MAC adresa stanice, kada je poznata njena IP adresa

    • Da bi ruter obavestio izvorišni računar da IP paket koji je stigao do njega nije pronašao svoje odredište

    Correct Answer
    A. Pronašla nepoznata MAC adresa stanice, kada je poznata njena IP adresa
    Explanation
    The correct answer is "Pronašla nepoznata MAC adresa stanice, kada je poznata njena IP adresa" which translates to "To find the unknown MAC address of a station when its IP address is known." ARP (Address Resolution Protocol) is used to map an IP address to a MAC address on a local network. When a device wants to communicate with another device on the same network, it needs to know the MAC address of the destination device. ARP helps in resolving this mapping by sending an ARP request to the network, asking for the MAC address of the device with a specific IP address.

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  • 38. 
    Na slici je prelazak iz jednog u drugo stanje TCP veze na strani: - ProProfs

    Na slici je prelazak iz jednog u drugo stanje TCP veze na strani:

    • I klijenta i servera

    • Servera

    • Klijenta

    • Rutera

    Correct Answer
    A. Klijenta
    Explanation
    The correct answer is "Klijenta". The question asks about the transition from one state to another in a TCP connection, specifically on the side of the client. This means that the transition occurs on the client's end, indicating that the client is responsible for the change in state.

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  • 39. 

    Na samom početku transportna celina se nalazi u sledećem stanju:

    • LISTEN

    • CLOSE

    • ESTABLISHED

    • FIN WAIT

    Correct Answer
    A. CLOSE
    Explanation
    At the beginning, the transport unit is in the CLOSE state. This state indicates that the transport connection is closed or nonexistent.

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  • 40. 

    Dijkstra algoritam vezan je za:

    • Source routing bridges

    • Spanning Tree algoritam

    • Flooding

    • Shortest path routing

    Correct Answer
    A. Shortest path routing
    Explanation
    The Dijkstra algorithm is associated with shortest path routing. It is a popular algorithm used to find the shortest path between two nodes in a graph. It works by iteratively selecting the node with the smallest distance and updating the distances of its neighboring nodes. This process continues until the shortest path to all nodes is determined. Therefore, the correct answer is "Shortest path routing."

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  • 41. 

    Protokoli rutiranja sa stanjem veze računaju najbolju putanju tako što:

    • Grade kompletnu topološku mapu mreže

    • Šalju informaciju samo o novim mrežama

    • Razmenjuju informaciju o mrežama samo sa susedima

    • Šalju masku podmreže u objavama

    Correct Answer
    A. Grade kompletnu topološku mapu mreže
    Explanation
    Protokoli rutiranja sa stanjem veze grade kompletnu topološku mapu mreže. This means that they create a detailed map of the network, including all the routers and their connections. This allows them to have a comprehensive understanding of the network topology and the available paths for routing. By having this complete map, the routing protocols can make more informed decisions about the best path to send data packets.

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  • 42. 
    Posle 4 razmene kolika će metrika biti u tabelama rutiranja B, C, D, E ruterima? - ProProfs

    Posle 4 razmene kolika će metrika biti u tabelama rutiranja B, C, D, E ruterima?

    • B=1; C=2; D=3; E=0;

    • B=2; C=3; D=4; E=5;

    • B=1; C=2; D=3; E=4;

    • B=3; C=4; D=5; E=6;

    Correct Answer
    A. B=1; C=2; D=3; E=4;
    Explanation
    After 4 exchanges, the metric in the routing tables of routers B, C, D, and E will be B=1, C=2, D=3, and E=4.

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  • 43. 

    IP protokol je:

    • Bez uspostave veze

    • Sa uspostavom veze

    • Zavisi od klase, postoji i jedna i druga vrsta

    • Zavisi od formata zaglavlja

    Correct Answer
    A. Bez uspostave veze
    Explanation
    The correct answer is "Bez uspostave veze" which means "Without establishing a connection" in English. This refers to the fact that the IP protocol operates in a connectionless manner, where each packet is treated independently and can take different routes to reach its destination. Unlike protocols with connection-oriented communication, such as TCP, IP does not require a prior establishment of a connection between sender and receiver. Instead, it relies on the best-effort delivery model, where packets are sent without any guarantee of delivery or order.

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  • 44. 

    Od koliko heksteta se sastoji IPv6?

    • 16

    • 8

    • 32

    • 64

    Correct Answer
    A. 8
    Explanation
    IPv6 consists of 8 hexadecimals, each consisting of 4 bits. This means that IPv6 has a total of 128 bits, which are divided into 8 groups of 4 hexadecimals each. Therefore, the correct answer is 8.

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  • 45. 

    Kada u LAN mreži može nastati emisiona oluja?

    • Kada aplikacija generiše veliki broj malih eternet okvira

    • Kada korisnici preuzimaju velike fajlove sa servera

    • Kada postoji petlja u topologiji na 2. sloju

    • Kada postoje elektromagnetne smetnje na medijumu

    Correct Answer
    A. Kada postoji petlja u topologiji na 2. sloju
    Explanation
    When there is a loop in the 2nd layer topology, a broadcast storm can occur in a LAN network. This happens when a broadcast packet circulates endlessly in the loop, causing a flood of broadcast traffic that overwhelms the network. This can lead to network congestion, performance degradation, and even network failure.

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  • 46. 

    Routing Information Protocol – RIP koristi:

    • Algoritam izvorišnog rutiranja

    • Spanning Tree algoritam

    • Algoritam vektora udaljenosti

    • Algoritam stanja veze

    Correct Answer
    A. Algoritam vektora udaljenosti
    Explanation
    RIP (Routing Information Protocol) uses the distance vector algorithm. This algorithm calculates the distance or cost to reach a particular destination and updates the routing table accordingly. It exchanges routing information with neighboring routers and uses hop count as the metric to determine the best path. RIP periodically broadcasts its entire routing table to neighboring routers, which can cause a slow convergence and increased network traffic. However, it is a simple and widely supported routing protocol, making it suitable for small to medium-sized networks.

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  • 47. 

    Konvergencija je stanje kada:

    • Svi ruteri imaju iste tabele rutiranja

    • Svi ruteri imaju usaglašene tabele rutiranja

    • Svi ruteri razmenjuju informacije sa ostalim ruterima

    • Ne znam

    Correct Answer
    A. Svi ruteri imaju usaglašene tabele rutiranja
    Explanation
    Konvergencija je stanje kada svi ruteri u mreži imaju usaglašene tabele rutiranja. To znači da su sve informacije o najboljim putanjama do odredišnih adresa usklađene i ažurirane na svim ruterima. Kada postoji konvergencija, ruteri mogu efikasno rutirati pakete kroz mrežu jer imaju tačne informacije o tome koja je putanja najbolja za svaku destinaciju.

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  • 48. 

    Ako se u mreži koristi VLSM i CIDR, onda je neophodno koristiti:

    • Klasni protokol za rutiranje

    • Besklasni protokol za rutiranje

    Correct Answer
    A. Besklasni protokol za rutiranje
    Explanation
    If VLSM (Variable Length Subnet Masking) and CIDR (Classless Inter-Domain Routing) are being used in the network, it is necessary to use a classless routing protocol. Unlike classful routing protocols, which divide the network into fixed-sized classes, classless routing protocols allow for more flexibility in subnetting and addressing. VLSM and CIDR both rely on the concept of subnet masks with variable lengths, allowing for more efficient use of IP addresses and more precise routing. Therefore, a classless routing protocol is required to support these features.

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  • 49. 

    Koja oznaka (fleg) se postavlja u zaglavlju TCP segmenta kao obaveštenje da je u mreži došlo do zagušenja?

    • RST

    • FIN

    • PUSH

    • ECN

    Correct Answer
    A. ECN
    Explanation
    The correct answer is ECN. ECN stands for Explicit Congestion Notification. It is a flag that is set in the header of a TCP segment to indicate that congestion has occurred in the network. When a router detects congestion, it can set the ECN flag in the TCP header to notify the receiving end. This allows the receiving end to adjust its transmission rate and reduce congestion in the network.

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Quiz Review Timeline (Updated): Mar 21, 2023 +

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

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 09, 2019
    Quiz Created by
    John321e
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