TRE 4.0 Networking Quiz Practice Set 3 06th November 2026 Share On Que: (1). What kind of transmission medium is most appropriate to carry data in a computer network that is exposed to electrical interference? Asked in BPSC TRE 1.0 Optical fiber B. Unshielded twisted pair A. Coaxial cable C. More than one of the above D. None of the above E. Check Answer Open question page Que: (2). Which transmission medium is completely immune to electromagnetic interference (EMI)? Shielded twisted pair B. Optical fiber C. Coaxial cable A. Unshielded twisted pair D. None of the above E. Check Answer Open question page Que: (3). Which type of twisted-pair cable provides better protection against electromagnetic interference? Unshielded Twisted Pair (UTP) A. Shielded Twisted Pair (STP) B. Coaxial cable C. Fiber optic cable D. None of the above E. Check Answer Open question page Que: (4). Which phenomenon occurs when signals from one communication wire interfere with signals in another nearby wire? Attenuation A. Amplification C. Crosstalk B. Modulation D. None of the above E. Check Answer Open question page Que: (5). Which transmission medium uses electrical signals to transmit data? Infrared B. Copper cable C. Optical fiber A. Laser communication D. None of the above E. Check Answer Open question page Que: (6). Which component of an optical fiber keeps light confined within its core through total internal reflection? Cladding A. Copper conductor C. Outer jacket B. Insulation D. None of the above E. Check Answer Open question page Que: (7). Which of the following is the most common cause of signal loss during data transmission over a communication medium? Multiplexing C. Attenuation B. Crosstalk A. Encoding D. None of the above E. Check Answer Open question page Que: (8). Which transmission medium consists of a central conductor surrounded by an insulating layer and a metallic shield? Coaxial cable C. Optical fiber A. Unshielded twisted pair B. Shielded twisted pair D. None of the above E. Check Answer Open question page Que: (9). Which type of optical fiber allows only one propagation mode of light? Multimode graded-index fiber B. Single-mode fiber C. Multimode step-index fiber A. Coaxial fiber D. None of the above E. Check Answer Open question page Que: (10). Why are the wires in a twisted-pair cable twisted around each other? To increase electrical interference A. To convert electrical signals into light signals C. To reduce electromagnetic interference and crosstalk B. To increase cable diameter D. None of the above E. Check Answer Open question page Que: (11). Which network topology requires a central controller or hub? Asked in BPSC TRE 1.0 Star A. Mesh B. Ring C. More than one of the above D. None of the above E. Check Answer Open question page Que: (12). Which network topology connects every node directly to every other node? Ring B. Full Mesh C. Bus A. Star D. None of the above E. Check Answer Open question page Que: (13). Which network topology uses a single main cable called a backbone to connect all devices? Mesh C. Bus B. Star A. Ring D. None of the above E. Check Answer Open question page Que: (14). Which network topology connects each computer to exactly two neighbouring computers, forming a closed loop? Bus B. Ring C. Star A. Tree D. None of the above E. Check Answer Open question page Que: (15). Which network topology is a combination of two or more different network topologies? Bus Topology A. Ring Topology C. Hybrid Topology B. Mesh Topology D. None of the above E. Check Answer Open question page Que: (16). Which network topology has the highest number of direct connections and provides excellent fault tolerance? Star Topology B. Bus Topology A. Full Mesh Topology C. Ring Topology D. None of the above E. Check Answer Open question page Que: (17). Which network topology is generally considered the easiest to install and manage for a small LAN? Full Mesh Topology B. Ring Topology C. Star Topology A. Complex Hybrid Topology D. None of the above E. Check Answer Open question page Que: (18). In which network topology does data traditionally travel in one direction around a closed loop? Ring Topology C. Bus Topology A. Star Topology B. Tree Topology D. None of the above E. Check Answer Open question page Que: (19). How many direct connections are required to create a full mesh topology containing 6 nodes? 15 B. 18 C. 12 A. 30 D. None of the above E. Check Answer Open question page Que: (20). Which network topology has a hierarchical structure consisting of a root node and multiple levels of child nodes? Tree Topology C. Ring Topology B. Bus Topology A. Mesh Topology D. None of the above E. Check Answer Open question page Que: (21). A collection of hyperlinked documents on the Internet forms the Asked in BPSC TRE 1.0 e-mail system B. mailing list C. World Wide Web (WWW) A. More than one of the above D. None of the above E. Check Answer Open question page Que: (22). Who is known as the inventor of the World Wide Web (WWW)? Vint Cerf C. Charles Babbage A. Tim Berners-Lee B. Bill Gates D. None of the above E. Check Answer Open question page Que: (23). Which protocol is primarily used to transfer web pages between a web server and a web browser? HTTP C. FTP A. SMTP B. POP3 D. None of the above E. Check Answer Open question page Que: (24). Which protocol provides encrypted communication between a web browser and a web server? HTTP A. HTTPS B. FTP C. Telnet D. None of the above E. Check Answer Open question page Que: (25). What is the full form of URL in computer networking? Universal Reference Link B. Uniform Resource Locator A. Uniform Routing Language C. Unified Resource Location D. None of the above E. Check Answer Open question page Que: (26). Which markup language is primarily used to create and structure web pages? SQL C. HTML B. XML A. C++ D. None of the above E. Check Answer Open question page Que: (27). Which software is used to access and display web pages on the Internet? Web Browser B. Database Management System C. Compiler A. Assembler D. None of the above E. Check Answer Open question page Que: (28). Which of the following is responsible for storing and delivering web pages to clients? Search Engine C. Web Browser B. Web Server A. Text Editor D. None of the above E. Check Answer Open question page Que: (29). Which of the following is a search engine used to find information on the World Wide Web? Apache C. Mozilla Firefox B. Google A. Microsoft IIS D. None of the above E. Check Answer Open question page Que: (30). Which organization develops and maintains standards for technologies used on the World Wide Web? ISO C. IEEE A. W3C B. ICANN D. None of the above E. Check Answer Open question page Que: (31). Which of the following is not a step in the Header translation procedure? Asked in BPSC TRE 1.0 The value of the IPv6 priority field is discarded B. The IPv6 mapped address is changed to an IPv4 address by extracting the rightmost 32 bits A. The IPv6 flow label is considered C. More than one of the above D. None of the above E. Check Answer Open question page Que: (32). What is the length of an IPv6 address? 128 bits C. 64 bits B. 32 bits A. 256 bits D. None of the above E. Check Answer Open question page Que: (33). What is the size of the fixed header in IPv6? 20 bytes A. 40 bytes B. 60 bytes C. 80 bytes D. None of the above E. Check Answer Open question page Que: (34). Which field in the IPv6 header is used to identify the upper-layer protocol? Next Header C. Payload Length B. Hop Limit A. Flow Label D. None of the above E. Check Answer Open question page Que: (35). Which IPv6 header field performs a function similar to the TTL field in IPv4? Hop Limit B. Flow Label A. Traffic Class C. Payload Length D. None of the above E. Check Answer Open question page Que: (36). How many bits are allocated to the Flow Label field in the IPv6 header? 20 bits C. 8 bits A. 12 bits B. 32 bits D. None of the above E. Check Answer Open question page Que: (37). Which protocol is commonly used to support communication between IPv6-only and IPv4-only networks through address and protocol translation? NAT64 B. DNS A. ARP C. DHCP D. None of the above E. Check Answer Open question page Que: (38). Which IPv6 header field specifies the size of the payload following the fixed IPv6 header? Payload Length B. Header Length A. Hop Limit C. Traffic Class D. None of the above E. Check Answer Open question page Que: (39). Which of the following fields is present in the IPv4 header but not in the fixed IPv6 base header? Source Address A. Header Checksum C. Destination Address B. Hop Limit D. None of the above E. Check Answer Open question page Que: (40). How many bits are allocated to the Traffic Class field in the IPv6 header? 4 bits A. 16 bits C. 8 bits B. 20 bits D. None of the above E. Check Answer Open question page Que: (41). Which sublayer of the data link layer performs data link functions that depend upon the type of medium? Asked in BPSC TRE 1.0 Network interface control sublayer C. Media access control sublayer B. Logical link control sublayer A. More than one of the above D. None of the above E. Check Answer Open question page Que: (42). Which sublayer of the Data Link Layer provides an interface between the Network Layer and the MAC Sublayer? Physical Sublayer A. Logical Link Control Sublayer B. Media Access Control Sublayer C. Transport Sublayer D. None of the above E. Check Answer Open question page Que: (43). At which layer of the OSI model does framing take place? Network Layer C. Data Link Layer B. Physical Layer A. Transport Layer D. None of the above E. Check Answer Open question page Que: (44). Which address is primarily used by the MAC Sublayer to identify devices on a local network? MAC Address B. Port Address C. IP Address A. URL D. None of the above E. Check Answer Open question page Que: (45). Which technique is used to detect errors in Ethernet frames? Parity Check A. Hamming Code C. Cyclic Redundancy Check (CRC) B. Checksum only D. None of the above E. Check Answer Open question page Que: (46). Which channel access method is traditionally associated with classic shared Ethernet networks? CSMA/CA B. CSMA/CD A. Token Passing C. Polling D. None of the above E. Check Answer Open question page Que: (47). Which protocol is commonly used in wireless LANs to reduce the possibility of collisions? Token Ring C. CSMA/CD A. CSMA/CA B. ALOHA only D. None of the above E. Check Answer Open question page Que: (48). Which IEEE standard is associated with Ethernet networking? IEEE 802.15 C. IEEE 802.11 B. IEEE 802.3 A. IEEE 802.16 D. None of the above E. Check Answer Open question page Que: (49). Which of the following is a function of the Data Link Layer? Physical addressing B. Framing A. Error detection C. More than one of the above D. None of the above E. Check Answer Open question page Que: (50). Which of the following is the correct order of the Data Link Layer sublayers in the IEEE 802 architecture, from upper to lower? MAC followed by LLC A. Physical followed by LLC C. LLC followed by MAC B. Network followed by MAC D. None of the above E. Check Answer Open question page Que: (51). Which one of the following is not a network topology? Asked in BPSC TRE 1.0 Bus C. Ring B. Peer-to-peer A. More than one of the above D. None of the above E. Check Answer Open question page Que: (52). Which network architecture allows computers to share resources directly without requiring a dedicated central server? Client-server A. Master-slave C. Peer-to-peer B. Centralized architecture D. None of the above E. Check Answer Open question page Que: (53). In which network architecture do clients request services and a central server provides those services? Ring architecture C. Peer-to-peer A. Client-server B. Mesh architecture D. None of the above E. Check Answer Open question page Que: (54). Which type of network covers a small geographical area such as a home, office or school building? LAN C. WAN A. MAN B. PAN D. None of the above E. Check Answer Open question page Que: (55). Which type of computer network is designed to cover a metropolitan city or a large town? PAN B. MAN C. LAN A. WAN D. None of the above E. Check Answer Open question page Que: (56). Which type of network is used to connect computers and networks across countries and continents? LAN A. MAN C. PAN B. WAN D. None of the above E. Check Answer Open question page Que: (57). Which type of network is generally used for communication between personal devices over a short distance? MAN B. PAN C. WAN A. LAN D. None of the above E. Check Answer Open question page Que: (58). Which network architecture is generally easier to manage centrally and provides centralized user authentication? Peer-to-peer A. Client-server B. Ring C. Bus D. None of the above E. Check Answer Open question page Que: (59). Which of the following is a major disadvantage of a peer-to-peer network? High cost of dedicated servers A. It cannot share files C. Difficulty in centralized management and security B. It requires a mainframe computer D. None of the above E. Check Answer Open question page Que: (60). Which of the following best describes the Internet? A single MAN B. A single LAN A. A global network of interconnected networks C. A single peer-to-peer computer D. None of the above E. Check Answer Open question page Que: (61). When the mail server sends mail to other mail servers it becomes Asked in BPSC TRE 1.0 SMTP server B. peer C. SMTP client A. More than one of the above D. None of the above E. Check Answer Open question page Que: (62). Which protocol is primarily used to send email messages from a client to a mail server? SMTP C. IMAP B. POP3 A. More than one of the above D. None of the above E. Check Answer Open question page Que: (63). Which protocol is commonly used to download emails from a mail server to a local device? POP3 B. HTTP C. SMTP A. More than one of the above D. None of the above E. Check Answer Open question page Que: (64). Which email protocol allows users to access and synchronize messages across multiple devices? IMAP C. FTP B. SMTP A. More than one of the above D. None of the above E. Check Answer Open question page Que: (65). What is the default port number used by SMTP for server-to-server email transfer? 25 B. 110 C. 21 A. More than one of the above D. None of the above E. Check Answer Open question page Que: (66). Which TCP port is commonly used for email submission by an authenticated email client? 25 A. 587 C. 110 B. More than one of the above D. None of the above E. Check Answer Open question page Que: (67). Which component of an email system is responsible for transferring messages between mail servers? Mail Transfer Agent A. File Transfer Protocol C. Web browser B. More than one of the above D. None of the above E. Check Answer Open question page Que: (68). Which DNS record identifies the mail server responsible for receiving email for a domain? MX record B. A record A. CNAME record C. More than one of the above D. None of the above E. Check Answer Open question page Que: (69). Which SMTP command is used to specify the sender address during an email transaction? RCPT TO A. MAIL FROM C. DATA B. More than one of the above D. None of the above E. Check Answer Open question page Que: (70). Which email security protocol helps authenticate the sending domain and reduce email spoofing? ARP C. FTP A. DHCP B. More than one of the above D. None of the above E. Check Answer Open question page Que: (71). The length of an IPv6 address is Asked in BPSC TRE 1.0 64 bits B. 32 bits A. 256 bits C. More than one of the above D. None of the above E. Check Answer Open question page Que: (72). How many bits are used in an IPv4 address? 64 bits C. 32 bits B. 16 bits A. More than one of the above D. None of the above E. Check Answer Open question page Que: (73). How many hexadecimal groups are present in the standard representation of an IPv6 address? 4 A. 6 B. 8 C. More than one of the above D. None of the above E. Check Answer Open question page Que: (74). Which numbering system is used to represent an IPv6 address? Binary only A. Octal C. Decimal only B. More than one of the above D. None of the above E. Check Answer Open question page Que: (75). What is the size of the fixed header in IPv6? 60 bytes C. 40 bytes B. 20 bytes A. More than one of the above D. None of the above E. Check Answer Open question page Que: (76). Which field in the IPv6 header replaces the Time To Live field of IPv4? Hop Limit C. Flow Label B. Traffic Class A. More than one of the above D. None of the above E. Check Answer Open question page Que: (77). How many bits are allocated to the Flow Label field in an IPv6 header? 20 bits C. 16 bits B. 8 bits A. More than one of the above D. None of the above E. Check Answer Open question page Que: (78). Which protocol is used by IPv6 for address resolution instead of ARP? ICMPv6 Neighbor Discovery A. SMTP C. FTP B. More than one of the above D. None of the above E. Check Answer Open question page Que: (79). Which type of IPv6 address is used to identify a group of interfaces and deliver packets to the nearest member of that group? Anycast B. Unicast A. Multicast C. More than one of the above D. None of the above E. Check Answer Open question page Que: (80). Which of the following is a valid IPv6 loopback address? 192.168.1.1 B. 127.0.0.1 C. 0.0.0.0 A. More than one of the above D. None of the above E. Check Answer Open question page Que: (81). Which layer of the TCP/IP stack corresponds to the OSI model transport layer? Asked in BPSC TRE 1.0 Internet C. Host-to-host A. Application B. More than one of the above D. None of the above E. Check Answer Open question page Que: (82). How many layers are present in the OSI reference model? 7 C. 5 B. 4 A. More than one of the above D. None of the above E. Check Answer Open question page Que: (83). How many layers are present in the commonly used TCP/IP model? 7 C. 3 A. 4 B. More than one of the above D. None of the above E. Check Answer Open question page Que: (84). Which layer of the OSI model is responsible for logical addressing and routing? Physical layer A. Network layer C. Data Link layer B. More than one of the above D. None of the above E. Check Answer Open question page Que: (85). Which two protocols operate at the Transport layer of the TCP/IP model? TCP and UDP B. HTTP and FTP A. IP and ICMP C. More than one of the above D. None of the above E. Check Answer Open question page Que: (86). Which OSI layer is responsible for encryption, compression and data translation? Application layer C. Session layer A. Presentation layer B. More than one of the above D. None of the above E. Check Answer Open question page Que: (87). Which protocol is responsible for providing connection-oriented and reliable data transmission? TCP C. UDP A. IP B. More than one of the above D. None of the above E. Check Answer Open question page Que: (88). Which protocol is used to transfer web pages between a web server and a browser? HTTP B. POP3 C. SMTP A. More than one of the above D. None of the above E. Check Answer Open question page Que: (89). Which device primarily operates at the Data Link layer of the OSI model? Router A. Hub B. Switch C. More than one of the above D. None of the above E. Check Answer Open question page Que: (90). Which protocol is responsible for translating domain names into IP addresses? ARP C. DHCP A. DNS B. More than one of the above D. None of the above E. Check Answer Open question page Que: (91). Which layer of the TCP/IP stack corresponds to the OSI model transport layer? Asked in BPSC TRE 1.0 Host-to-host A. Internet C. Application B. More than one of the above D. None of the above E. Check Answer Open question page Que: (92). How many layers are present in the OSI reference model? 7 C. 5 B. 4 A. More than one of the above D. None of the above E. Check Answer Open question page Que: (93). How many layers are present in the commonly used TCP/IP model? 3 A. 4 B. 7 C. More than one of the above D. None of the above E. Check Answer Open question page Que: (94). Which layer of the OSI model is responsible for logical addressing and routing? Network layer C. Data Link layer B. Physical layer A. More than one of the above D. None of the above E. Check Answer Open question page Que: (95). Which two protocols operate at the Transport layer of the TCP/IP model? TCP and UDP B. IP and ICMP C. HTTP and FTP A. More than one of the above D. None of the above E. Check Answer Open question page Que: (96). Which OSI layer is responsible for encryption, compression and data translation? Session layer A. Presentation layer B. Application layer C. More than one of the above D. None of the above E. Check Answer Open question page Que: (97). Which protocol provides connection-oriented and reliable data transmission? TCP C. IP B. UDP A. More than one of the above D. None of the above E. Check Answer Open question page Que: (98). Which protocol is used to transfer web pages between a web server and a browser? POP3 C. HTTP B. SMTP A. More than one of the above D. None of the above E. Check Answer Open question page Que: (99). Which device primarily operates at the Data Link layer of the OSI model? Hub B. Router A. Switch C. More than one of the above D. None of the above E. Check Answer Open question page Que: (100). Which protocol is responsible for translating domain names into IP addresses? ARP C. DHCP A. DNS B. More than one of the above D. None of the above E. Check Answer Open question page Que: (101). The private key in asymmetric key cryptography is kept by Asked in BPSC TRE 1.0 sender and receiver C. sender A. receiver B. More than one of the above D. None of the above E. Check Answer Open question page Que: (102). How many keys are used in asymmetric key cryptography? Two keys B. One key A. Three keys C. More than one of the above D. None of the above E. Check Answer Open question page Que: (103). Which cryptographic algorithm is a widely used example of asymmetric encryption? AES A. DES B. RSA C. More than one of the above D. None of the above E. Check Answer Open question page Que: (104). Which key is used to encrypt a message when sending confidential data to a receiver using public-key encryption? Receiver's private key C. Receiver's public key B. Sender's private key A. More than one of the above D. None of the above E. Check Answer Open question page Que: (105). Which key is used to decrypt a message encrypted with the receiver's public key? Receiver's public key B. Sender's public key A. Receiver's private key C. More than one of the above D. None of the above E. Check Answer Open question page Que: (106). Which cryptographic technique is used to verify the authenticity and integrity of a digital message? Data encryption only C. Data compression A. Digital signature B. More than one of the above D. None of the above E. Check Answer Open question page Que: (107). Which type of cryptography uses the same secret key for encryption and decryption? Asymmetric cryptography A. Symmetric cryptography C. Public-key cryptography B. More than one of the above D. None of the above E. Check Answer Open question page Que: (108). Which of the following is a symmetric encryption algorithm? AES C. RSA A. ECC B. More than one of the above D. None of the above E. Check Answer Open question page Que: (109). What does PKI stand for in information security? Private Key Internet A. Personal Key Information C. Public Key Infrastructure B. More than one of the above D. None of the above E. Check Answer Open question page Que: (110). Which organization or entity issues digital certificates in a Public Key Infrastructure? Certificate Authority A. Internet Service Provider B. Web browser C. More than one of the above D. None of the above E. Check Answer Open question page Que: (111). Which of the following is true with regard to the ping command? Asked in BPSC TRE 1.0 The ping command checks the port level connectivity between source and destination endpoints. B. Ping summarizes the packet loss and round-trip delay between two IP endpoints. C. Ping stands for Packet Internet Generator. A. More than one of the above D. None of the above E. Check Answer Open question page Que: (112). Which protocol is primarily used by the ping command to test network connectivity? UDP B. TCP A. ICMP C. More than one of the above D. None of the above E. Check Answer Open question page Que: (113). Which ICMP message is sent by the ping command to check whether a destination is reachable? Echo Request B. Destination Unreachable C. Echo Reply A. More than one of the above D. None of the above E. Check Answer Open question page Que: (114). What does RTT stand for in the output of the ping command? Round Trip Time B. Response Transmission Time C. Real Transfer Time A. More than one of the above D. None of the above E. Check Answer Open question page Que: (115). Which command-line option is commonly used in Windows ping to specify the number of Echo Request messages? -t A. -l C. -n B. More than one of the above D. None of the above E. Check Answer Open question page Que: (116). Which command is commonly used in Windows to test whether a specific TCP port on a remote system is reachable? ping A. Test-NetConnection C. ipconfig B. More than one of the above D. None of the above E. Check Answer Open question page Que: (117). What does packet loss indicate when using the ping command? Some transmitted packets did not receive a response. B. The destination IP address has changed. C. All packets reached the destination successfully. A. More than one of the above D. None of the above E. Check Answer Open question page Que: (118). Which command-line option is commonly used in Linux ping to specify the number of packets to send? -c B. -t C. -n A. More than one of the above D. None of the above E. Check Answer Open question page Que: (119). Which ICMP error message may be returned when a router cannot forward a packet to its destination? Echo Request A. Destination Unreachable C. Echo Reply B. More than one of the above D. None of the above E. Check Answer Open question page Que: (120). Which command is commonly used to display the route taken by packets to reach a destination? tracert B. netstat C. ipconfig A. More than one of the above D. None of the above E. Check Answer Open question page
