CCNA 2 v7 Practice Test (Pt. 2)

Refer to the exhibit. Which three hosts will receive ARP requests from host A, assuming that port Fa0/4 on both switches is configured to carry traffic for multiple VLANs? (Choose three.)

• Host B

• Host C

• Host D

• Host E

• Host F

Answer explanation

ARP requests are sent out as broadcasts. That means the ARP request is sent only throughout a specific VLAN. VLAN 1 hosts will only hear ARP requests from hosts on VLAN 1. VLAN 2 hosts will only hear ARP requests from hosts on VLAN 2.

Refer to the exhibit. The network administrator configures both switches as displayed. However, host C is unable to ping host D and host E is unable to ping host F. What action should the administrator take to enable this communication?

• Associate hosts A and B with VLAN 10 instead of VLAN 1.

• Configure either trunk port in the dynamic desirable mode.

• Include a router in the topology.

• Remove the native VLAN from the trunk.

• Add the switchport nonegotiate command to the configuration of SW2.

What is the effect of entering the shutdown configuration command on a switch?

• It enables BPDU guard on a specific port.

• It disables an unused port.

• It enables portfast on a specific switch interface.

• It disables DTP on a non-trunking interface.

What would be the primary reason an attacker would launch a MAC address overflow attack?

• so that the switch stops forwarding traffic

• so that legitimate hosts cannot obtain a MAC address

• so that the attacker can see frames that are destined for other hosts

• so that the attacker can execute arbitrary code on the switch

During the AAA process, when will authorization be implemented?

• Immediately after successful authentication against an AAA data source

• Immediately after AAA accounting and auditing receives detailed reports

• Immediately after an AAA client sends authentication information to a centralized server

• Immediately after the determination of which resources a user can access

Answer explanation

AAA authorization is implemented immediately after the user is authenticated against a specific AAA data source.

A company security policy requires that all MAC addressing be dynamically learned and added to both the MAC address table and the running configuration on each switch. Which port security configuration will accomplish this?

• auto secure MAC addresses

• dynamic secure MAC addresses

• static secure MAC addresses

• sticky secure MAC addresses

Answer explanation

With sticky secure MAC addressing, the MAC addresses can be either dynamically learned or manually configured and then stored in the address table and added to the running configuration file. In contrast, dynamic secure MAC addressing provides for dynamically learned MAC addressing that is stored only in the address table.

Which three Wi-Fi standards operate in the 2.4GHz range of frequencies? (Choose three.)

• 802.11a

• 802.11b

• 802.11g

• 802.11n

• 802.11ac

Answer explanation

802.11b and 802.11g operate in the 2.4GHz range, and 802.11n can operate in either the 2.4GHz or the 5GHz range. 802.11a and 802.11ac operate only in the 5GHz range of frequencies.

To obtain an overview of the spanning tree status of a switched network, a network engineer issues the show spanning-tree command on a switch. Which two items of information will this command display? (Choose two.)

• The root bridge BID.

• The role of the ports in all VLANs.

• The status of native VLAN ports.

• The number of broadcasts received on each root port.

• The IP address of the management VLAN interface.

Refer to the exhibit. Which trunk link will not forward any traffic after the root bridge election process is complete?

• Trunk1

• Trunk2

• Trunk3

• Trunk4

Which method of IPv6 prefix assignment relies on the prefix contained in RA messages?

• EUI-64

• SLAAC

• static

• stateful DHCPv6