Network Layer OSI Model Solved MCQsBy: Prof. Dr. Fazal Rehman | Last updated: May 2, 2025 29 Score: 0 Attempted: 0/29 Subscribe 1. _______ field in the base header restricts the lifetime of a datagram in IPv6. (A) Version (B) Next-header (C) Hop limit (D) Neighbor-advertisement 2. An HLEN value of decimal 10 means _______ in the IPv4 header. (A) 10 bytes of options (B) 40 bytes of options (C) 10 bytes in the header (D) 40 bytes in the header 3. In IPv4, an HLEN value of decimal 10 means _______. (A) 10 bytes of options (B) 40 bytes of options (C) 40 bytes in the header (D) None of the above 4. _______ field in the base header and the sender IP address combine to indicate a unique path identifier in IPv6. (A) Flow label (B) Next header (C) Hop limit (D) Destination IP address 5. What is the value of the total length field in bytes in IPv4? (A) 428 (B) 407 (C) 107 (D) 427 6. ________ term means that IP provides no error checking. (A) Reliable delivery (B) Connection-oriented delivery (C) Best-effort delivery (D) None of the above 7. ________ protocol is the transmission used by the TCP/IP suite. (A) ARP (B) IP (C) RARP (D) None of the above 8. What is the length of the data field given an HLEN value of 12 and the total length is 40,000 in IPv4? (A) 39,988 (B) 40,012 (C) 40,048 (D) 39,952 9. What is needed to determine the number of the last byte of a fragment in IPv4? (A) Identification number (B) Offset number (C) Total length (D) (B) and (C) 10. _______ size in the IPv4 header. (A) 20 to 60 bytes long (B) 20 bytes long (C) 60 bytes long (D) None of the above 11. In IPv6, the decision is based on the _______ field in the base header. (A) Hop limit (B) Priority (C) Next header (D) None of the above 12. Which bit value unambiguously identifies the datagram as a fragment in IPv4? (A) Do not fragment bit = 0 (B) More fragment bit = 0 (C) Offset = 1000 (D) None of the above 13. Which is a necessary part of the IPv6 datagram? (A) Base header (B) Extension header (C) Data packet from the upper layer (D) (A) and (C) 14. In IPv4, the total size of the datagram must be less than the _______. (A) MUT (B) MAT (C) MTU (D) None of the above 15. Options are inserted between _________ and ___________ data, in IPv6. (A) Base header; extension header (B) Base header; upper-layer data (C) Base header; frame header (D) None of the above 16. Datagram is fragmented into three smaller datagrams in IPv4. Which is true? (A) The do not fragment bit is set to 1 for all datagrams. (B) The more fragment bit is set to 0 for all datagrams. (C) The identification field is the same for all datagrams. (D) The offset field is the same. 17. If the fragment offset has a value of 100, it means that _______ in IPv4. (A) Datagram has not been fragmented (B) Datagram is 100 bytes in size (C) The first byte of the datagram is byte 100 (D) The first byte of the datagram is byte 800 18. IP is _________ datagram protocol. (A) An unreliable (B) A connectionless (C) Both A and B (D) None of the above 19. IPv6 allows _________ security provisions than IPv4. (A) More (B) Less (C) The same level (D) None of the above 20. The formerly IPv4 header field known as the service type field is now called? (A) IETF (B) Checksum (C) Differentiated services (D) None of the above 21. Delivery service such as IPv4. (A) Error checking (B) Error correction (C) Datagram acknowledgment (D) None of the above 22. The IPv4 header size _______. (A) 20 to 60 bytes long (B) 20 bytes long (C) 60 bytes long (D) None of the above 23. Which network layer from the sender to receiver deals with the necessity of a three-way handshake transmission of data? (A) Path determination (B) Forwarding (C) Call set-up (D) All of the above 24. Transmission purpose is basically a combination of __________. (A) Group of bits (B) Source & destination addresses (C) Both A & B (D) None of the above 25. ________ plays a crucial role in the functions of the network layer. (A) Network Service Data Unit (NSDU) (B) Medium Access Control Unit (MACU) (C) Network Address Translation Unit (NATU) (D) None of the above 26. _______ form of byte assigning strategy is adopted in class B? (A) Network.Node.Node.Node (B) Network.Network.Node.Node (C) Network.Network.Network.Node (D) Network.Node.Node.Node 27. Which size of the block depends on classless? (A) Nature & size of an entity (B) Number of addresses (C) Availability of the address space (D) All of the above 28. Which is the ability of a single network to span multiple physical networks? (A) Subnetting (B) Masking (C) Fragmenting (D) Hopping 29. Which field/s of ICMPv6 packet header has minimal integrity levels? (A) Type (B) Code (C) Checksum (D) All of the above Other Important Repeated MCQs on OSI Layers Data link layer OSI Model Solved MCQs Physical Layer OSI Model Solved MCQs Network Layer OSI Model Solved MCQs 7 layers OSI Model solved MCQs More MCQs of Networking Internet and Web Router MCQs Storage area network MCQs Networking Important MCQs Network Security MCQs Electrical Network Analysis MCQs Networking Programming MCQs Social Networks MCQs Network Layers OSI Model MCQs Digital Communication MCQs Telecommunication MCQs Transmission and switching MCQs Networking topologies Solved MCQs Computer Network MCQs for Lecturer Test Mobile and Wireless Network MCQs Cyber Crime Solved MCQs Internet Protocols MCQs Internet MCQs Web Security and forensics MCQs Web Security and forensics MCQs 2 Wireless Security MCQs Datalink layer OSI Model MCQs Physical Layer OSI Model MCQs 7 layers OSI Model MCQs Application Layer MCQs WIFI MCQs Internet and Email MCQs Networking MCQs Public Service Commission network administrator MCQs LINUX MCQ’s Linux File Permissions MCQs Linux File Permissions MCQs 2 Linux Startup and Shutdown MCQs Linux process Management MCQs More MCQs of Networking on T4Tutorials Related Posts:OSI Model MCQs - [Which of the following OSI Layer?]Data link layer OSI Model Solved MCQsPhysical Layer OSI Model Solved MCQsPhysical Layer in the OSI ModelWhich of the following is the first layer of the OSI (Open Systems Interconnection) model?Router operates in which layer of OSI reference model?
