OSI Reference Layers MCQs with answers Page - 33

You will find multiple-choice questions (MCQs) related to #OSI Reference Layers here. Go through these questions to prepare effectively for your upcoming exams and interviews.

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A

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Q. Which of these protocols is used for host discovery in IPv6 networks?

  • (A) ARP
  • (B) NDP
  • (C) DHCPv6
  • (D) ICMPv6

A

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Q. Which field in an IP header is used to indicate fragmentation?

  • (A) Fragment Offset
  • (B) TTL
  • (C) Protocol
  • (D) Header Length

A

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Q. Which protocol is responsible for error messaging and operational queries in the Network Layer?

  • (A) IP
  • (B) ICMP
  • (C) TCP
  • (D) UDP

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Q. Which of these is NOT a valid reason for packet fragmentation at the Network Layer?

  • (A) Exceeding the MTU
  • (B) Network congestion
  • (C) Path MTU Discovery failure
  • (D) Different link layer limits

A

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Q. Which IPv6 address is used for multicast communication?

  • (A) fe80::/10
  • (B) ff00::/8
  • (C) fc00::/7
  • (D) ::1

A

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Q. What is the main function of the 'Next Header' field in an IPv6 packet?

  • (A) Identifies the transport layer protocol
  • (B) Indicates IP version
  • (C) Specifies packet length
  • (D) Counts the hops

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Q. Which IPv4 address is reserved for loopback testing?

  • (A) 192.168.1.1
  • (B) 10.0.0.1
  • (C) 127.0.0.1
  • (D) 255.255.255.255

A

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Q. Which field in an IPv4 header indicates the maximum hops a packet can travel?

  • (A) Identification
  • (B) TTL
  • (C) Fragment Offset
  • (D) Total Length

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Q. What is the primary purpose of subnet masks in networking?

  • (A) Identify the network portion of an IP address
  • (B) Encrypt data
  • (C) Assign MAC addresses
  • (D) Determine hop count

A

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Q. What is the range of Class B IP addresses in the first octet?

  • (A) 0-127
  • (B) 128-191
  • (C) 192-223
  • (D) 224-239
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