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The most important parameter in the header for determining the route of a packet is the destination address, which is compared with the records from the routing table.

The correct answer includes "Veb prezentacije" and "Veb aplikacije". These two types of content are commonly found on websites. Veb prezentacije refer to websites that are designed to provide information or showcase a particular topic or business. They are static and usually do not require user interaction. On the other hand, Veb aplikacije are websites that are interactive and allow users to perform specific tasks or access certain services. They often require user input and can provide personalized experiences.

The introduction of network classes in 1981 led to the determination of the network size based on the first bits of the address. This means that the network class system allowed for the division of IP addresses into different classes (A, B, C, etc.) based on the number of bits used to represent the network portion of the address. This allowed for more efficient allocation of IP addresses and better organization of networks.

The correct answer is 0 - 1.023. This range represents the privileged ports, which are well-known ports reserved for specific services and protocols. These ports are typically used by system processes or by programs executed by privileged users. The range from 0 to 1.023 covers a wide range of commonly used ports for various network services, such as HTTP (port 80), FTP (port 21), and SSH (port 22). These ports are restricted and require special privileges to be accessed, ensuring better security and control over network communication.

The correct answer is "broj posrednika" which translates to "number of intermediaries" in English. In the context of RIP routing protocol, the number of intermediaries refers to the number of routers or devices that a packet has to pass through in order to reach its destination. This parameter is important because it affects the efficiency and speed of the routing process. A higher number of intermediaries can lead to increased latency and potential points of failure, while a lower number can result in faster and more direct routing.

The correct answer is horizontal scaling. This is indicated by the term "horizontalno skaliranje" in the options. Horizontal scaling refers to the process of adding more resources (such as servers) to a system in order to handle increased workload or traffic. It involves distributing the workload across multiple machines or nodes, allowing for improved performance and scalability.

A router connects networks by directing data packets between them. It acts as a gateway, determining the most efficient path for data to travel from one network to another. Routers use routing tables and protocols to make these decisions, ensuring that data is delivered accurately and efficiently. Therefore, a router is the correct answer as it is specifically designed for connecting networks through data forwarding.

The priority of a route is determined by its metric. The metric of a route represents the cost or quality of that route compared to others. It takes into account factors such as delay, reliability, speed of communication channels, and the number of hops. The lower the metric value, the higher the priority of the route. Therefore, the route with the lowest metric is given the highest priority.

If the destination address of the received packet does not belong to any individually defined network in the routing table, the router will forward the packet using the default route.

Dinamicko rutiranje se aktivira i ostvaruje koriscenjem protokola za rutiranje. Protokoli za rutiranje su posebni algoritmi koji se koriste u mrežama kako bi se odlučivalo o najboljem putu za slanje podataka između različitih mrežnih čvorova. Oni omogućavaju mrežnim uređajima da razmjenjuju informacije o dostupnim putanjama i dinamički prilagođavaju rutiranje prema trenutnim promjenama u mreži.

The correct answer is "prevodjenje simbolickih imena u adrese Internet protokola" which translates to "translation of symbolic names into Internet protocol addresses." DNS (Domain Name System) is responsible for translating domain names (symbolic names) into IP addresses so that computers can communicate with each other on the internet. This translation is necessary because computers use IP addresses to identify and locate each other, while humans find it easier to remember and use domain names.

TCP (Transmission Control Protocol) paketi se uglavnom inkapsuliraju direktno u datagrame Internet protokola. TCP je odgovoran za pouzdano prenošenje podataka putem mreže, dok Internet protokol (IP) omogućava rutiranje paketa na mreži. Kada se TCP paket šalje, on se stavlja unutar IP datagrama kako bi bio prenet preko mreže. Dakle, datagrami Internet protokola su omotači koji sadrže TCP pakete i omogućavaju im prenos preko mreže.

The most likely source of the problem is that the specified range of ports (64,000 to 128,000) is not valid. Firewalls typically only allow port numbers up to 65,535, so the range given exceeds the maximum allowed limit. Therefore, the firewall system is rejecting the filtering rule because the specified port range is not valid.

The correct answer is "Resolver." The resolver is the client component of the DNS service that is responsible for sending DNS queries to the DNS server and receiving the corresponding DNS responses. It acts as an intermediary between the client application and the DNS server, translating domain names into IP addresses and vice versa.

The correct answer is "fragmentacija". Fragmentacija is the process of breaking up datagrams into smaller pieces called fragments in order to satisfy the Maximum Transmission Unit (MTU) limitations in the intermediate network. This is necessary because different networks may have different MTU sizes, and if a datagram is larger than the MTU of a particular network, it needs to be fragmented into smaller fragments that can be transmitted across that network.

When using the POP3 protocol to access an email mailbox, executing the DELE command will mark the message for deletion at the end of the session. This means that the message will not be immediately removed from the mailbox, but rather flagged for deletion. The actual deletion will occur when the session is ended or when the QUIT command is executed. Therefore, the correct answer is "oznacavanje poruke za brisanje na kraju sesije" which translates to "marking the message for deletion at the end of the session".

The correct answer is "rad na udaljenim racunarima" which translates to "working on remote computers" in English. Telnet is a network protocol that allows users to remotely access and control a computer or network device over a network connection. It enables users to log in to a remote system and execute commands as if they were directly working on that system. Therefore, the main purpose of the telnet service is to facilitate working on remote computers.

NAPT, or Network Address Port Translation, is necessary when there are multiple members in a private network and only one public address available. In this situation, NAPT allows for the translation of network addresses through ports, enabling multiple members of the private network to share the same public address. This helps to conserve public IP addresses and allows for communication between the private network and the internet.

IPv4 addresses have a bit length of 32 bits. This means that an IPv4 address is represented by a combination of 32 binary digits, which can be further divided into four groups of 8 bits each, also known as octets. Each octet is represented in decimal form, ranging from 0 to 255. IPv4 addresses are widely used in computer networks and are gradually being replaced by IPv6 addresses, which have a bit length of 128 bits.

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The correct answer is ARP protokol. The ARP (Address Resolution Protocol) is responsible for translating logical addresses (IP addresses) into physical addresses (MAC addresses) on a local network. It is used to find the MAC address of a device based on its IP address, allowing for communication between devices on the same network.

The correct answer is RIP and EIGRP. These protocols are examples of distance vector routing protocols, which use distance (usually measured in hops) and direction information to determine the best path for data packets to travel from one network to another. RIP (Routing Information Protocol) is a simple and widely used protocol, while EIGRP (Enhanced Interior Gateway Routing Protocol) is a Cisco proprietary protocol that offers advanced features such as load balancing and faster convergence. OSPF (Open Shortest Path First) and IS-IS (Intermediate System to Intermediate System) are examples of link state routing protocols, which use more complex algorithms to calculate the best path based on the overall network topology.

The DHCP protocol is used in local computer networks for the automated assignment of Internet Protocol (IP) addresses. It allows devices to obtain an IP address automatically when connecting to the network, eliminating the need for manual configuration. This ensures efficient and seamless connectivity within the network, as devices can easily obtain the necessary network configuration information without manual intervention.

Internet Protocol (IP) address and network mask are assigned to the network interface. The network interface is responsible for connecting the device to the network and handling the communication between the device and the network. Therefore, the IP address and network mask are configured on the network interface to enable the device to communicate with other devices on the network.

The correct answer is 49.152 – 65.535. This range represents the short-term dynamic ports in networking. These ports are used for temporary connections and are typically assigned dynamically by the operating system. The range of 49.152 – 65.535 allows for a large number of temporary connections to be established simultaneously.

The correct answer is GET because in the given scenario, the user's web browser is sending data through a form using the GET method. The data is being appended to the URL as query parameters, which is a characteristic of the GET method.

In situations where there is no need for locking resources and parallel usage is possible, better performance can be achieved by applying concurrent processing of requests. This means that multiple requests can be processed simultaneously, allowing for efficient utilization of resources and faster execution of tasks.

The correct answer is "mejn-frejm" because it describes a network architecture where terminals are used for user interfaces and all processing is done on a central computer. In this architecture, the central computer, also known as the mainframe, handles all the data processing and storage while the terminals act as input/output devices for the users. This architecture was commonly used in the early days of computing when mainframe computers were the primary computing resources for multiple users.

To use international symbols in email messages and to add attachments to messages, it is necessary to use MIME and IMAP. MIME (Multipurpose Internet Mail Extensions) is a protocol that allows email clients to send and receive different types of data, including non-text attachments and international characters. IMAP (Internet Message Access Protocol) is a standard protocol for accessing email on a remote server. It allows users to manage their email messages, including downloading and uploading attachments, and supports the use of MIME for handling different types of content.

In basic software implementations at the application layer, applications and services are included. This means that the software being developed or used includes both applications and services. Applications refer to the specific programs or software applications that are being used, while services refer to the functionalities or capabilities provided by the software. These two components are essential in the application layer as they enable the software to perform specific tasks or provide specific services to the users.

The transport layer of the OSI and TCP/IP communication models is responsible for establishing communication between nodes in a local network. This layer ensures that data packets are delivered reliably and in the correct order within the local network. It provides end-to-end communication services and handles issues such as flow control, error detection, and error recovery. Therefore, the correct answer is "cvorova u lokalnoj mrezi" which translates to "nodes in a local network".

The correct answer is "upotrebu unutar lokalnog računara". The IP address range 127.0.0.0/8 is reserved for loopback addresses, which means it is used to test network connectivity on the local machine. This address range is not routable and is only used for communication within the same device.

The support for the transport layer of the OSI and TCP/IP communication models is most commonly implemented at the level of the operating system. The operating system provides the necessary protocols and services for establishing and managing connections, as well as ensuring reliable and efficient data transfer between applications. This allows applications to communicate with each other over a network using standardized protocols, regardless of the specific hardware or network interface being used.

IGMP (Internet Group Management Protocol) is used for multicasting, which means sending data to multiple recipients simultaneously. When there is a need to send data to multiple recipients, IGMP protocol is used. ICMP (Internet Control Message Protocol) is used for error reporting and diagnostic messages, not for multicasting. IPX/SPX (Internetwork Packet Exchange/Sequenced Packet Exchange) is a protocol suite used in Novell NetWare networks, not for multicasting. Therefore, the correct answer is IGMP protocol.

The correct answer is "u otvorenom obliku" which means "in an open form". This suggests that the content of the files transmitted through the FTP protocol travels without encryption, meaning it can be accessed and read by anyone who intercepts the communication.

If there is a difference in one bit of the last octet between the local and destination addresses, and the local network mask belongs to class C, the packet will be sent through a network gateway. This means that the destination address is not within the same local network as the source address, so the packet needs to be forwarded to the appropriate network gateway for further routing to reach the destination network.

When a received datagram is determined to be damaged, the User Datagram Protocol (UDP) protocol involves discarding the segment. Unlike other protocols like TCP, UDP does not have mechanisms for requesting retransmission of the segment. Therefore, the damaged segment is simply discarded and not sent for retransmission. The other options of forwarding the segment to the receiving application or discarding the segment are not applicable in this case.

The correct answer is "preostali broj dozvoljenih skokova paketa" which translates to "remaining number of allowed packet hops". The Time to Live (TTL) field in the IP packet header is used to limit the lifespan of a packet in a network. Each time a packet is forwarded by a router, the TTL value is decremented by one. When the TTL reaches zero, the packet is discarded. This mechanism prevents packets from circulating indefinitely in a network and helps in preventing routing loops.

When we want to divide a computer network into two smaller networks, it will result in changing one bit from the value 0 to the value 1 in the network mask. This is because the network mask is used to determine which part of an IP address belongs to the network and which part belongs to the host. By changing one bit from 0 to 1, we are altering the network portion of the IP address, effectively dividing the network into two smaller networks.

The correct answer is 16 because the question is asking about the bit length of a port value. A bit is the basic unit of information in computing and can have a value of either 0 or 1. Therefore, when the answer says "16", it means that the port value has a bit length of 16, indicating that it can have 16 bits or binary digits.

For local network package delivery, physical addresses are used. Physical addresses refer to the unique hardware addresses assigned to network devices, such as MAC (Media Access Control) addresses. These addresses are used to identify and deliver packets to specific devices within the local network. Logical addresses, on the other hand, are used for network communication over the internet and are assigned by network protocols like IP (Internet Protocol). Symbolic addresses are not commonly used in network communication and are not relevant to local package delivery.

The correct answer is "promenljiva" which means variable in Serbian. This suggests that the header length of TCP segments can vary in size. Unlike the other options that specify fixed lengths of either 32 bits or 160 bits, the variable option indicates that the header length can be different depending on the specific TCP segment being used.

The correct answer is "1.024 — 49.151". This range represents the registered ports in computer networking. Registered ports are used by applications and services that are not commonly used or standardized. They fall within the range of 1.024 to 49.151, which includes a total of 48.128 ports. These ports are typically assigned by the Internet Assigned Numbers Authority (IANA) to ensure that there is no conflict or duplication in port usage.

FTPS is the correct answer because it is the abbreviation for "File Transfer Protocol Secure". It is a variation of the FTP protocol that uses SSL/TLS protocol for data protection. FTPS provides an added layer of security by encrypting the data during transmission, ensuring that it cannot be intercepted or tampered with by unauthorized users.

Segmentacija je proces podele podataka sa sloja aplikacije na delove pogodne za transport putem TCP protokola. Ovaj proces omogućava efikasniji prenos podataka tako što ih deli na manje segmente koji se mogu preneti preko mreže. Na taj način se obezbeđuje pouzdan i efikasan prenos podataka preko TCP protokola.

Telnet is a protocol that allows remote access to a computer system, but it is not secure as the data transmitted is unencrypted. Due to security concerns, Telnet has been replaced by SSH (Secure Shell) protocol in sensitive systems. SSH provides secure remote access and data communication by encrypting the data transmitted over the network. FTP (File Transfer Protocol) and SNMP (Simple Network Management Protocol) are not directly related to Telnet and do not provide the same level of security as SSH.

The correct answer is "pozicija na kojoj se bitovi dva niza razlikuju" (the position at which the bits of two arrays differ). Exclusive disjunction, also known as XOR, is a logical operation that compares two binary values and returns true if and only if the values differ at a specific position. In the context of Internet protocol, this operation can be used to determine the position where the bits of two arrays differ, which can be useful for various purposes such as error detection or data comparison.

The correct answer is "do isključivanja računara sa mreže" which means "until the computer is turned off from the network". This means that the IP address obtained through the DHCP protocol will only be valid until the computer is disconnected or turned off from the network. Once the computer is disconnected or turned off, the IP address will be released and will no longer be valid.

The existence of multiple network gateways to the same destination network with the same metric usually indicates load balancing. This means that the network traffic is being distributed across multiple paths to optimize the utilization of the available network resources and avoid congestion on a single gateway. Load balancing helps to improve network performance, increase throughput, and ensure better resource utilization.

The given answer "konkurentne obrade podataka" suggests that the person prefers concurrent data processing. This means that they prefer processing data simultaneously and in parallel, rather than sequentially. This approach allows for faster and more efficient data processing, as multiple tasks can be executed at the same time. It is a commonly used technique in various fields, such as computer science and data analysis, where large amounts of data need to be processed quickly.

The correct answer is "prosledjivanje portova." This refers to port forwarding, which is a technique used in networking to redirect traffic from one IP address and port number combination to another. It is commonly used to allow external devices or users to access specific services or applications on a local network.

An autonomous system refers to a collection of networks that are under the control of a single organization or entity. These networks use public IP addresses and are administered by the organization that owns them. This allows the organization to have control over the routing of data within their network and enables them to connect to other autonomous systems to exchange traffic. Therefore, an autonomous system is the correct term for a collection of networks that use public IP addresses and are administered by a single organization.

UDP (User Datagram Protocol) radi bez uspostavljanja veze. To znači da ne postoji prethodna razmjena podataka između pošiljaoca i primaoca prije slanja podataka. UDP jednostavno šalje podatke od pošiljaoca do primaoca bez provjere isporuke ili potvrde. Ova vrsta komunikacije je brža i ima manje overheada u odnosu na protokole koji zahtijevaju uspostavljanje veze, poput TCP-a. Međutim, zbog nedostatka provjere isporuke, podaci mogu biti izgubljeni ili stići u pogrešnom redoslijedu. UDP se često koristi za aplikacije koje zahtijevaju brzu i efikasnu komunikaciju, poput streaminga videozapisa ili igara u stvarnom vremenu.

During the transmission of packets through multiple computer networks (without using address translation-NAT), both logical and physical addresses will change. Logical addresses are used to identify devices within a network, such as IP addresses, while physical addresses refer to the hardware addresses, such as MAC addresses. As the packets traverse different networks, the logical addresses will be modified to reflect the new network, while the physical addresses will remain the same.

The correct answer is "u sifrovanom obliku (zasticeno),u izvornom obliku (nezasticeno)". This is because the dialogue mentioned in the question is about the transmission of access parameters when using a web service. It states that the appearance of such a dialogue implies the transmission of access parameters in either encrypted form (protected) or in plain form (unprotected). Therefore, the correct answer includes both options.

The correct answer is "Mrezni fajl sistem" (Network file system). This answer suggests that the image depicts a network file system, which is a distributed file system that allows multiple users to access files and directories on remote servers. It is commonly used in environments where multiple computers need to share files and resources.

To establish a connection in the TCP protocol, it is necessary to use three segments without user data. This refers to the three-way handshake process in TCP, where the client sends a SYN segment to the server, the server responds with a SYN-ACK segment, and finally, the client sends an ACK segment to complete the connection establishment. These three segments are crucial in establishing a reliable and synchronized connection between the client and server.

The given correct answer states that there is a negligible number of public IP addresses available. This suggests that the number of public IP addresses is extremely small or insignificant.

The correct answer is Iterativna obrada zahteva. The question asks what is represented in the picture, and out of the given options, Iterativna obrada zahteva is the most suitable answer. This suggests that the picture depicts Iterativna obrada zahteva, which refers to iterative processing of requests.

NTP stands for Network Time Protocol, which is a protocol used for synchronizing the clocks of computer systems over a network. It is primarily used for time synchronization between devices to ensure accurate timekeeping. The question asks for personal preference, so the correct answer would depend on the individual's liking.

The correct answer is "protokola korisnickih datagrama, UDP." This is because VoIP (Voice over Internet Protocol) and video conferencing services require real-time communication, where a small delay is acceptable but packet loss is not critical. UDP (User Datagram Protocol) is a connectionless protocol that provides a faster and more efficient transmission of data by not requiring acknowledgments or retransmissions, making it suitable for these types of services. TCP (Transmission Control Protocol) is a reliable protocol that ensures the delivery of data but introduces more latency and overhead, making it less suitable for real-time communication. FTP (File Transfer Protocol) is used for transferring files, which is not directly related to VoIP or video conferencing.

The correct answer for this question is "otvorenost standarda" and "pripadnost jezicima za oznacavanje". This means that the advantage of JSON data encoding system over XML is its openness to standards and its compatibility with markup languages. JSON is a widely used data format that is based on a simple and easy-to-understand syntax. It is not tied to any specific programming language or platform, making it more flexible and interoperable compared to XML. Additionally, JSON can be easily parsed and manipulated by various programming languages, making it a preferred choice for data exchange and storage.

The correct answer is "sistem domenskih imena" (domain name system). The domain name system is responsible for translating symbolic addresses (such as domain names) into logical addresses (such as IP addresses). It provides a hierarchical structure for organizing and managing domain names, allowing users to easily access websites and other resources on the internet. ARP (Address Resolution Protocol) is used for translating logical addresses (IP addresses) into physical addresses (MAC addresses) on a local network, while the internet protocol (IP) is responsible for routing packets across different networks.

The correct answer is "server." In the context of electronic mail services, the Termin Message Transfer Agent (MTA) refers to a component that is responsible for routing and transferring email messages between different mail servers. It acts as a server that handles the transmission of emails from the sender's server to the recipient's server. Therefore, MTA is associated with the server aspect of the email service rather than the client or protocol.

The correct answer is "160 bitova ili vise" (160 bits or more). This is because the header length of the Internet Protocol (IP) can vary and is not fixed. It can be 160 bits or longer depending on the specific requirements and options used in the IP packet.

Vertikalno skaliranje se odnosi na unapređivanje računara kroz dodavanje više naprednijih centralnih procesora sa više jezgara i veće količine radne memorije. Ova metoda omogućava povećanje performansi računara tako što se dodaju više resursa na postojeću mašinu. Ovo je suprotno od horizontalnog skaliranja, gde se povećava broj računara u mreži kako bi se poboljšala ukupna performansa.

IMAP (Internet Message Access Protocol) and POP3 (Post Office Protocol version 3) are both examples of protocols used for receiving electronic mail. They allow users to retrieve and access their email messages from a mail server. FTP (File Transfer Protocol) is used for transferring files, while SMTP (Simple Mail Transfer Protocol) is used for sending email messages. HTTP (Hypertext Transfer Protocol) is used for accessing and retrieving web pages. Therefore, the correct answer is IMAP and POP3 as they are specifically designed for receiving email.

The correct answer includes HTTP and HTTPS as the basic seeds of uniform resource locators (URLs) for web services. HTTP stands for Hypertext Transfer Protocol, which is the foundation of data communication on the World Wide Web. HTTPS is the secure version of HTTP, providing encryption and authentication mechanisms for secure communication. The other options mentioned (WWW, FTP, WEB, FTPS, MAILTO) are not considered basic seeds of URLs for web services.

The correct answer is FTP (File Transfer Protocol). FTP is a protocol used for transferring files between computers over a network. It allows users to upload, download, and manage files on remote computers. HTTP (Hypertext Transfer Protocol) is used for transferring web pages and data on the World Wide Web, SMTP (Simple Mail Transfer Protocol) is used for sending emails. Therefore, FTP is the appropriate protocol for transferring files to remote computers.

The valid decimal representations of binary octets for network masks are those that have a value ranging from 0 to 255. In the given options, the numbers 255, 128, 0, 224, and 252 fall within this range and can be valid decimal representations of binary octets for network masks.

SNMP (Simple Network Management Protocol) is a protocol used for network administration. It allows network administrators to manage and monitor network devices such as routers, switches, and servers. SNMP provides a standardized way to collect and organize information about network devices, as well as the ability to remotely configure and control these devices. Therefore, the correct answer is "administriranje mreze" which means "network administration" in English.

Protokoli zasnovani na vektorima udaljenosti su protokoli za rutiranje koji ne formiraju topologiju celokupne mreže, već samo imaju informaciju o susednim ruterima. Oni koriste vektore udaljenosti, odnosno informaciju o udaljenosti do odredišnih mreža, kako bi doneli odluku o rutiranju. Ovi protokoli ne razmenjuju informacije o celokupnoj mreži sa svim ruterima, već samo sa susednim ruterima.

The correct answer is "sistem domenskih imena" which translates to "domain name system" in English. The domain name system is necessary for the normal functioning of the electronic mail service on the Internet as it is responsible for translating domain names (such as www.example.com) into IP addresses that computers can understand. Without the domain name system, it would be difficult to send and receive emails as the system relies on domain names to route messages to the correct mail servers.

The correct answer is "deo koji odredjuje clana mreze" and "deo koji odredjuje mrezu" because in the Internet Protocol version 4 (IPv4) address, the address is divided into two parts: the network portion and the host portion. The network portion determines the network to which the device belongs, while the host portion identifies the specific device within that network.

The answer suggests that the user entered the command in parts, after inputting each new character. This means that the user typed "rm -rf /" one character at a time, pressing Enter after each character. This explanation helps to understand the process of how the command was entered using the Telnet protocol.

The correct answer is "protokola za prenos fajlova, FTP" because FTP (File Transfer Protocol) is a standard network protocol used for transferring files from one host to another over a TCP-based network, such as the internet. It is specifically designed for file transfer and provides functionalities for uploading, downloading, and managing files on remote servers. TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are other protocols used for different purposes, but they are not specifically designed for file transfer like FTP.

The correct answer is synchronization of time among network members. The NTP protocol, which stands for Network Time Protocol, is used to synchronize the clocks of devices within a network. By ensuring that all devices have the same time, it allows for accurate timekeeping and coordination of network activities.

The correct answer is SFTP. SFTP stands for Secure File Transfer Protocol, which is a variation of the FTP protocol that uses SSH (Secure Shell) for data protection. It provides a secure way to transfer files over a network, encrypting both the commands and the data being transferred. FTPS, on the other hand, stands for FTP over TLS (Transport Layer Security), which uses SSL/TLS encryption for secure file transfers. FTP/TLS is not a valid abbreviation for this variation of the FTP protocol.

The correct answer for this question is the combination of "podela horizonta" and "podela horizonta sa zatrovanim povratnim rutama". These mechanisms are used in RIP (Routing Information Protocol) to prevent routing loops. "Podela horizonta" refers to the technique of not advertising a route back to the same neighbor it was learned from, while "podela horizonta sa zatrovanim povratnim rutama" involves advertising a route with an infinite metric to indicate that it should not be used. These mechanisms help ensure that routing loops are avoided and the network operates efficiently.

ICMP (Internet Control Message Protocol) messages are encapsulated within Internet Protocol (IP) packets. ICMP is a network protocol used by network devices to send error messages and operational information about the network. It is often used for diagnostic and troubleshooting purposes. Since ICMP messages are part of the IP protocol suite, they are encapsulated within IP packets when transmitted over the network. Therefore, the correct answer is "Internet protokola."

The given answer is correct because the fields mentioned (port posiljaoca, kontrolna suma, sirina prozora) are indeed part of the TCP protocol segment header. These fields are used for various purposes in the TCP communication process. The port posiljaoca field identifies the sender's port number, the kontrolna suma field is used for error detection, and the sirina prozora field determines the size of the receive window.

By replacing coaxial cables with twisted pair cables, the availability of the network is increased. This is because twisted pair cables are more resistant to interference and can support higher data transmission rates. Additionally, twisted pair cables are more widely available and easier to install, making them a more accessible option for network connectivity. Therefore, by using twisted pair cables, the network becomes more reliable and accessible to users.

The basic task of the network layer in OSI and TCP/IP communication models is inter-network addressing. This involves assigning unique addresses to different networks, allowing them to communicate with each other. This addressing scheme ensures that data packets are correctly routed between networks, enabling effective communication between systems.

SMTP (Simple Mail Transfer Protocol) is a protocol used for sending email messages over a network. The default transport protocol used by SMTP is TCP (Transmission Control Protocol). TCP provides reliable and ordered delivery of data packets, which is essential for the successful transmission of email messages. UDP (User Datagram Protocol) is a connectionless protocol that does not guarantee reliable delivery of data, making it unsuitable for SMTP. HTTP (Hypertext Transfer Protocol), POP3 (Post Office Protocol 3), and IMAP (Internet Message Access Protocol) are all application layer protocols that can be used for different purposes, but they are not the default transport protocol used by SMTP.

The given IP address ranges (192.168.0.0/16, 172.16.0.0/12, 10.0.0.0/8) are private IP address ranges that are commonly used for local network addressing. These addresses are not routable on the internet, so Network Address Translation (NAT) must be used to translate these private IP addresses to a public IP address in order to connect the members of these networks to the internet. The other IP address ranges (128.0.0.0/8, 16.0.0.0/8, 224.0.0.0/4) are not private IP address ranges and do not require NAT for internet connectivity.

The basic principles of protocol design are efficiency, reliability (robustness), adaptability, and security. These principles guide the development of protocols to ensure that they are efficient in terms of resource usage, reliable in delivering data without errors or losses, adaptable to different network conditions and requirements, and secure in protecting data from unauthorized access or manipulation. These principles are essential for designing protocols that can effectively and efficiently facilitate communication and data exchange in various network environments.

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SMTP (Simple Mail Transfer Protocol) is a protocol used for sending email messages between servers. While it is primarily designed for email transmission, it can also be used for asynchronous file transfer between remote computers. SMTP allows the sender to transfer files by attaching them to email messages and sending them to the recipient's email server. The recipient can then download the attached files from their email client. Therefore, SMTP can be used for asynchronous file transfer between remote computers.

The correct answer is "koriscenje protokola za rutiranje, rucni unos rute od strane administratora, automatsko otkrivanje putem Internet protokola". These are the basic methods for adding routes to the routing table. Using routing protocols allows routers to exchange information about networks and dynamically update their routing tables. Manual entry of routes by an administrator is another method, where routes are manually configured and added to the routing table. Automatic discovery through the Internet protocol involves routers exchanging routing information with neighboring routers to dynamically update their routing tables. ICMP protocol, restoration of configuration using backup, and addressing and activating network interfaces are not mentioned as basic methods for adding routes in the given options.

If the Internet Protocol module determines that the destination address is not located in the local network, it will use the logical address of the network gateway to send the packet. It will not use the physical address of the recipient or the physical address of the network gateway.

The ports on the transport layer of the OSI and TCP/IP communication models are used to determine the process for delivering data. Ports are used to identify specific applications or services running on a device, allowing the data to be directed to the correct process. Each process or application is assigned a unique port number, which helps in delivering the data to the intended destination.

The tasks mentioned in the answer, segmentation of data and delivery of data to the application, are indeed part of the responsibilities of the transport layer in both the OSI and TCP/IP communication models. The transport layer is responsible for breaking down the data into smaller segments for efficient transmission and ensuring that the data is successfully delivered to the intended application.

The parameters that are assigned to network members through the Dynamic Host Configuration Protocol (DHCP) include the default gateway address, the Internet Protocol (IP) address, and the network mask. These parameters are essential for network communication and connectivity. The default gateway address is the IP address of the router that connects the local network to other networks. The IP address is a unique identifier assigned to each device on the network, and the network mask is used to determine the network and host portions of the IP address.

The correct answer options are related to the purpose of Internet Protocol version 4 (IPv4) addresses from the range 224.0.0.0/4. These addresses are meant for addressing multiple recipients, using routing protocols, manually inputting routes by administrators, and automatic discovery through the Internet Protocol. These addresses are not used for addressing publicly visible Internet members, restoring configuration using backup, addressing and activating router network interfaces, or using the ICMP protocol.

The given answer correctly states the rules that ensure reliability in the TCP protocol. These rules include the ability to change the order of received segments, discarding duplicate segments, requiring acknowledgment of received segments, discarding damaged segments, and potentially correcting damaged segments if possible. These rules help ensure that data transmission is reliable and error-free in TCP.