72.

73.

74.

75.

76.

77.

78.

Two switches are connected together with two crossover cables for redundancy. If Spanning
Tree Protocol is disabled, then

(^) The MAC forwarding tables will not get updated
(8) The routing tables will not get updated
(C) There will be automatic load-balancing between the links

(D) There will be broadcast storms in the network

In a Cisco router, which among the following access lists will prevent hosts in the range
172.16, 160.0 to 172.16. 191.0?

(A) access-list 10 deny 172.16.160.0 0.0.31.255
(B) access-list 10 deny 172.16.160.0 0.0.191.255
(C) access-list 10 deny 172.16.160.0 0.0.255.255
(D) access-list 10 deny 172.16.160.0 255.255.192.0

Which among the following wildcard masks ensure that the exact address will have to be
matched on all 4 octets of the address?

(A) 0.0.0.0 ൫ 1
(© 8 (D) 255.255.255.255

In order to avoid rogue DHCP servers and remove malformed DHCP traffic,
feature can be configured on switches.

(^) DHCP lease (B) DHCP proxy
(C) DHCP snooping (D) DHCP time-out

When a router sets the metric for an unreachable link to infinity in the routing table, it is an
example of

(^) Half-open connection (B) Heartbeat timer
(C) Route Holddown (D) Route Poisoning

The default port for SSH client connections is
(A) 22 ‏رم‎ 48
(C) 443 (D) 3306

What part of DNS is flushed by the command ipconfig /flushdns?

(A) Domain records ൯) Forward lookup zones

(C) Resolver cache (D) TLD nameservers

15 098/2022
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