SSC IMD Scientific Assistant 2026 Full-Length Master Mock Test-1 ⋆ CSE Study247

SSC IMD Scientific Assistant 2026 Full-Length Master Mock Test-1

Questions 141-145 of 200

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Question 141

MCQ · Single Correct 1 mark

[Q.41] What is the total address space length of IPv6 in bits?

A 64 bits B 32 bits C 128 bits D 16 bits

MCQ · Single Correct 1 mark

[Q.42] Which layer of the OSI model is responsible for end-to-end communication, flow control, and error detection/recovery?

A Transport Layer B Session Layer C Network Layer D Data Link Layer

MCQ · Single Correct 1 mark

[Q.43] What is the default port number used by DNS (Domain Name System)?

A 80 B 53 C 22 D 443

MCQ · Single Correct 1 mark

[Q.44] Which protocol resolves an IP address to a physical MAC address on a local network?

A ICMP B ARP (Address Resolution Protocol) C DHCP D RARP

MCQ · Single Correct 1 mark

[Q.45] A network subnet mask of 255.255.255.224 corresponds to which CIDR notation?

A /25 B /26 C /28 D /27