57.

58.

59.

60.

61.

62.

63.

64.

is a technique used by distance vector protocols to prevent routing loops.
(A) Count-to-infinity (B) Flooding
(C) Split horizon ൯൩) Time-to-live

If a 10 Mbps LAN needs a minimum frame size of 56 bytes (for collision detection), the

minimum frame size required for a 100 Mbps LAN is —————— bytes.
(A) 5.6 (B) 56
(C) 64 (D) 560

The bandwidth of a communication link is 256 Mbps. If the byte sequence number is of size
32 bits, what is the wrap-around time for sequence numbers?

(^) 128s (B) 256s
(C) 512s (D) 1024s

Which OFDMA-based IEEE wireless standard is also known as Wi-Fi 6?
(^) 802.118८ ൯) 802.1lax
(0) 802.11be (0) 802.11g

The ICMP message generated when the TTL field of a datagram becomes 0 (thereby causing
the datagram to be discarded) is

(A) Destination Unreachable (B) Network Unreachable for ToS
(C) Source Quench (D) Time Exceeded
In DNS, —————— records are used to point a domain or subdomain to another hostname.
(A) A (B) AAAA
(C) CNAME 0) MX
is an example of a path vector routing protocol.
(A) BGP (3) EIGRP
(C) IGMP 0) 1515
After a manual MAC address change, ‏للب‎ ARP may be used to inform other nodes
about the new MAC address and the IP to MAC Mapping.
(A) Gratuitous (B) Proxy
(C) Refresh (D) Reverse
13 098/2022

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