1.
Protokol za kontrolu prenosa (engl. Transmission Control Protocol, TCP) radi:
Correct Answer
C. Sa uspostavljanjem veze
Explanation
The correct answer is "sa uspostavljanjem veze" which translates to "with establishing a connection" in English. This means that TCP protocol functions by establishing a connection between the sender and receiver before transmitting data. This connection ensures reliable and ordered delivery of data packets, as well as error detection and correction.
2.
Portovi na transportnom sloju OSI i TCP/ah komunikacionih modela sluze za:
Correct Answer
B. Odredjivanje procesa za isporuku podataka
Explanation
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.
3.
Dinamicko rutiranje se aktivira i ostvaruje koriscenjem:
Correct Answer
B. Protokola za rutiranje
Explanation
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.
4.
Prevodjenje mreznih adresa putem portova (engl. Network Address Port Translation, NAPT) neophodno u situacijama kada postoji:
Correct Answer
B. Vise clanova u privatnoj mrezi i jedna javna adresa
Explanation
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.
5.
Jedinica za adresovanje na nivou transportnog sloja je:
Correct Answer
C. Port
Explanation
The correct answer is "port" because in the context of the transport layer, a port is a logical construct that allows multiple processes or services to use the same IP address. Ports are used to differentiate between different applications or services running on a device. They are identified by numbers and can be either well-known ports (0-1023), registered ports (1024-49151), or dynamic or private ports (49152-65535). Ports are an essential component of the TCP/IP protocol suite and are crucial for establishing communication between devices over a network.
6.
Uniformni lokator resursa (URL) koji podrazumeva autentifikaciju korisnika za prisput resursu sadrzi simbol:
Correct Answer
C. @
Explanation
The correct answer is "@" because in a Uniform Resource Locator (URL), the "@" symbol is used to indicate the authentication credentials of the user for accessing the resource.
7.
U osnovne tipove sadrzaja Veb sajtova spadaju :
Correct Answer(s)
A. Veb prezentacije
B. Veb aplikacije
Explanation
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.
8.
Osnovna jedinica podataka protokola na mreznom sloju je:
Correct Answer
B. Paket
Explanation
The correct answer is "paket" because at the network layer, the basic unit of data is called a packet. A packet contains the necessary information for routing and delivering data across different networks. It includes the source and destination IP addresses, as well as the actual data being transmitted. Packets are used to efficiently transmit data over a network and ensure that it reaches its intended destination.
9.
U dokumentu kojim se opisuje uvodjenje novog servisa u racunarsku mrezu pominju se protokoli H.323 i SIP. Najverovatnije je u pitanju:
Correct Answer
C. Internet telefonija
Explanation
The mention of protocols H.323 and SIP in a document describing the introduction of a new service in a computer network suggests that the most likely answer is Internet telefonija, which translates to Internet telephony in English. H.323 and SIP are both protocols commonly used in the implementation of voice over IP (VoIP) services, which enable telephone calls to be made over the internet. Therefore, it can be inferred that the document is discussing the introduction of internet telephony as the new service in the network.
10.
Neka od polja u zaglavlju segmenta TCP protokola su :
Correct Answer(s)
A. Port posiljaoca
B. Kontrolna suma
C. Sirina prozora
Explanation
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.
11.
Korisnik je koriscenjem Telnet protokola zadao sledecu naredbu: bash-4.1# rm –rf /
Naredba je serveru prosledjena na sledeci nacin:
Correct Answer
A. U delovima, nakon unosa svakog novog karaktera
Explanation
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.
12.
Za prevodjenje simbolickih adresa u logicke zaduzen je:
Correct Answer
C. Sistem domenskih imena
Explanation
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.
13.
Sledeci servisi Interneta (Veb, elektronska posta) podrazumevaju koriscenje:
Correct Answer
C. Protokola za prenos fajlova, FTP
Explanation
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.
14.
Slanjem podataka putem formulara (korisnik:petar; lozinka:******; [prijavljivanje]) korisnikov Veb brauzer je otisao na adresu: http://adresa.servera/prijava.php?korisnik=petar&lozinka=abc123
Moze se zakljuciti da je koriscen metod HTTP protokola:
Correct Answer
D. GET
Explanation
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.
15.
Podrska za transportni sloj OSI i TCP/IP komunikacionih modela najcesce je realizovana na nivou:
Correct Answer
B. Operativnog sistema
Explanation
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.
16.
U slucaju utvrdjivanja ostecenja primljenog datagrama, protokol korisnickih datagrama (engl. User Datagram Protocol, UDP) podrazumeva sledecu akciju:
Correct Answer
B. Odbacivanje segmenta
Explanation
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.
17.
Klijentska komponenta DNS servisa nosi naziv:
Correct Answer
B. Resolver
Explanation
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.
18.
Rucni unos zapisa tabele rutiranja od strane administratora mreze naziva se:
Correct Answer
A. Staticno rutiranje
Explanation
The correct answer is "staticno rutiranje". This refers to the manual input of routing table entries by a network administrator. In static routing, the administrator manually configures the routes in the routing table, specifying the next hop for each destination network. This method is useful in small networks with a stable topology where the routes rarely change. It provides control and predictability over the network traffic, but can be time-consuming to manage and not suitable for large, dynamic networks.
19.
Na primeru adrese elektronske poste: primalac @ domen.srb
lokalni deo adrese cini:
Correct Answer
C. Primalac
Explanation
The correct answer is "primalac." In the given example of an email address, the local part of the address is everything before the "@" symbol. In this case, "primalac" is the local part of the address.
20.
U validne decimalne reprezentacije binarnih okteta mreznih maski spadaju:
Correct Answer(s)
A. 255
B. 128
D. 0
E. 224
G. 252
Explanation
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.
21.
Pri koriscenju POP3 protokola za pristup elektronskom postanskom sanducetu zadavanjem naredbe DELE izvrsice se:
Correct Answer
D. Oznacavanje poruke za brisanje na kraju sesije
Explanation
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".
22.
Danas je na raspolaganju:
Correct Answer
A. Zanemarljiv broj javnih adresa Internet protokola
Explanation
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.
23.
Mrezni prolaz (engl. gateway) ima osnovnu funkciju:
Correct Answer
A. Omogucavanja komunikacije izmedju susednih racunarskih mreza
Explanation
The correct answer is "omogucavanja komunikacije izmedju susednih racunarskih mreza" which means "enabling communication between neighboring computer networks" in English. A gateway serves as a connection point between different networks, allowing data to pass through and facilitating communication between them. It acts as a bridge, ensuring that information can be transmitted and received between adjacent networks.
24.
Najpopularnija softverska realizacija serverske strane Veb servisa danas je:
Correct Answer
B. Apac
Explanation
The correct answer is Apache. Apache is the most popular software implementation for server-side web services. It is an open-source web server software that is widely used due to its stability, security, and flexibility. It supports various operating systems and is highly customizable, making it a preferred choice for hosting websites and applications.
25.
Hosts fajlovi danas su:
Correct Answer
C. Jos uvek aktuelni, sa visim prioritetom od DNS servisa
Explanation
The correct answer states that hosts files are still relevant and have a higher priority than DNS services. This means that even though DNS services have been introduced, hosts files are still used and considered important for resolving domain names to IP addresses. They are given a higher priority, indicating that they are preferred over DNS services for name resolution.
26.
U osnovne softverske realizacije na sloju aplikacije spadaju:
Correct Answer(s)
C. Aplikacije
D. Servisi
Explanation
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.
27.
Osnovna uloga telnet servisa jeste da omoguci:
Correct Answer
C. Rad na udaljenim racunarima
Explanation
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.
28.
Protokoli za rutiranje koji ne formiraju topologiju celokupne mreze, vec samo imaju informaciju o susednim ruterima, nazivaju se:
Correct Answer
D. Protokoli zasnovani na vektorima udaljenosti
Explanation
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.
29.
Protokol za kontrolu prenosa (engl. Transmission Control Protocol, TCP) funkcionise na :
Correct Answer
C. Transportnom sloju
Explanation
TCP je protokol koji se koristi za pouzdanu i sigurnu komunikaciju između računara na mreži. On obezbeđuje prenos podataka između aplikacija na različitim računarima tako što ih deli na manje segmente, šalje ih preko mreže i ponovo sastavlja na odredišnom računaru. Ovo se odvija na transportnom sloju mrežnog modela OSI, što čini TCP odgovorom na pitanje.
30.
U privilegovane portove spada opseg:
Correct Answer
B. 0 - 1.023
Explanation
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.
31.
Obratite paznju na sledecu ilustraciju (slika cmd-a): Sa velikom verovatnocom se moze zakljuciti da navedeni sistemi prvi put ostvaruju vezu putem SSH protokola:
Correct Answer
A. Tacno
Explanation
The given illustration shows a screenshot of a command prompt window with a command related to SSH protocol. Based on this information, it can be inferred with a high probability that the mentioned systems are establishing a connection for the first time using the SSH protocol.
32.
Jedan od danas najpopularnijih prisputa kod distribuirane obrade podataka je:
Correct Answer
B. Klijent-server
Explanation
The correct answer is "klijent-server". The question is asking for the most popular approach in distributed data processing, and the client-server model is widely used in this context. In this model, the client initiates requests for data or services, while the server responds to those requests and provides the necessary resources. This approach allows for efficient and scalable data processing, making it a popular choice in distributed systems.
33.
Za odredjivanje rute paketa najvazniji parametar zaglavlja je odredisna adresa koja se uporedjuje sa zapisima iz:
Correct Answer
B. Tabele rutiranja
Explanation
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.
34.
U slucaju da ruter u tabeli rutiranja nema zapis o mrezi kojoj pripada odredisna adresa primljenog paketa, kao ni zapis o podrazumevanoj ruti, ruter ce paket:
Correct Answer
B. Odbaciti
Explanation
If the router does not have a record of the network to which the destination address of the received packet belongs, nor a record of the default route, the router will discard the packet.
35.
Poruke ICMP protokola se inkapsuliraju u poruke:
Correct Answer
C. Internet protokola
Explanation
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."
36.
Protokol koji omogucava realizaciju servisno orijentisane arhitekture na HTTP protokolu je:
Correct Answer
B. SOAP
Explanation
SOAP (Simple Object Access Protocol) is a protocol that allows the implementation of service-oriented architecture (SOA) on the HTTP protocol. It is a messaging protocol that enables communication between different systems over the internet. SOAP uses XML to format the messages and can be used with various transport protocols, including HTTP. It provides a standardized way for applications to exchange structured information and invoke web services. PHP, ASP, and JSP are programming languages or frameworks that can be used to develop web applications, but they are not protocols specifically designed for implementing service-oriented architecture on the HTTP protocol.
37.
Polje TTL u zaglavlju paketa Internet protokola oznacava:
Correct Answer
A. Preostali broj dozvoljenih skokova paketa
Explanation
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.
38.
Protokol za dinamicko podesavanje domacina (engl. Dynamic Host Configuration Protocol, DHCP) koristi se ulokalnim racunarskim mrezama za:
Correct Answer
D. Automatizovano dodeljivanje adresa Internet protokola
Explanation
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.
39.
Uredjaj sa podrskom za rad na mreznom sloju je:
Correct Answer
B. Ruter
Explanation
A device with support for working at the network layer is a router. A router is a networking device that forwards data packets between computer networks. It operates at the network layer of the OSI model and is responsible for directing network traffic based on IP addresses. Routers are commonly used in home and office networks to connect multiple devices and enable communication between them. They analyze the destination IP address of incoming packets and determine the best path for forwarding the data to its intended destination.
40.
Za koriscenje medjunarodnih simbola u porukama elektronske poste, kao i za dodavanje fajlova porukama, potrebno je koristiti:
Correct Answer(s)
A. MIME
C. IMAP
Explanation
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.
41.
Ukoliko zelimo da odredjenu racunarsku mrezu podelimo na dve manje mreze, to ce se na mreznu masku rezultovati u vidu:
Correct Answer
D. Izmene jednog bita sa vrednosti 0 na vrednost 1
Explanation
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.
42.
U osnovne zadatke transportnog sloja OSI i TCP/IP komunikacionih modela spadaju:
Correct Answer(s)
D. Segmentacija podataka
E. Prijem i isporuka podataka aplikaciji
Explanation
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.
43.
Iskljuciva disjunkcija je jedna od logickih operacija koje se koriste u radu sa Internet protokolom. Njenim koriscenjem se prvenstveno omogucava utvrdjivanje:
Correct Answer
B. Pozicija na kojoj se bitovi dva niza razlikuju
Explanation
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.
44.
U genericke domene najviseg nivoa spadaju :
Correct Answer(s)
B. Net
D. Org
E. Com
Explanation
The given answer is correct because "net," "org," and "com" are all examples of generic top-level domains (gTLDs). These gTLDs are used to categorize websites based on their purpose or organization type. They are commonly used and recognized by internet users worldwide.
45.
Vrednost porta ima bitsku duzinu:
Correct Answer
B. 16
Explanation
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.
46.
Koriscenje prevodjenja mreznih adresa (engl. Network Address Translation, NAT) mora se koristiti za povezivanje clanova sledecih mreza sa Internetom:
Correct Answer(s)
A. 192.168.0.0/16
B. 172.16.0.0/12
F. 10.0.0.0/8
Explanation
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.
47.
Vreme potrebno za uskladjivanje informacija izmedju svih rutera u mrezi naziva se:
Correct Answer
C. Vreme konvergencije
48.
Protokol na ciji naziv ukazuje skracenica SNMP koristi se za :
Correct Answer
B. Administriranje mreze
Explanation
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.
49.
Adresa Internet protokola i mrezna maska se dodeljuju:
Correct Answer
B. Mreznom interfejsu
Explanation
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.
50.
Podrazumevani transportni protokol koga koristi SMTP protokol je:
Correct Answer
E. TCP
Explanation
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.