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Cisco 100-105 - Questions & Answers

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Question 1
Single choice

Which value is of primary importance when a router populates its routing table for unique routes?

A.

Administrative distance

B.

Prefix length

C.

Network address

D.

Metric

Question 2
Single choice

How is the MAC address table of a switch populated?

A.

When the switch receives an Ethernet frame with a new destination MAC address, it installs the destination MAC address and the ingress switch port in the MAC address table

B.

When the switch receives an Ethernet frame with a new source MAC address, it installs the source MAC address and the ingress switch port in the MAC address table

C.

When the switch receives an Ethernet frame with a new destination MAC address, it installs the destination MAC address and the egress switch port in the MAC address table

D.

When the switch receives an Ethernet frame in which the source and destination MAC address are new, it installs the destination MAC address and the ingress switch port in the MAC address table

Question 3
Single choice

Which statement is true about port-security violations is true?

A.

When a violation occurs on a switch port in restrict mode, the switch port continues to accept traffic from unknown MAC address until the administrator manually disables it.

B.

When a violation occurs on a switch port in protect mode, it sends a syslog notification message.

C.

A port in the err-disabled state must be re-enabled manually, if recovery is disabled.

D.

When a switch port is in protect mode, it allows traffic from unknown MAC address until it has learned the maximum allowable number of MAC addresses.

Question 4
Single choice

Which statement is true about static and dynamic routing?

A.

Only static routes are shared between connected interfaces

B.

Dynamic routing is more scalable than static routing

C.

Only dynamic routes are secure

D.

Static routing is easier to maintain in a large network than dynamic routing.

Question 5
Single choice

Which statement about native VLAN traffic over 802.1Q trunk is true?

A.

It is discarded by STP

B.

It is placed is a high-priority queue

C.

It is tagged with a value of 1

D.

It is untagged

Question 6
Single choice

Which protocol can identify connected devices within a mixed-vendor infrastructure?

A.

Virtual terminal protocol

B.

Network time protocol

C.

Link level discovery protocol

D.

Cisco discovery protocol

Question 7
Single choice

Which interface configuration is used with a router-on-a-stick configuration?

A.

VRF

B.

Subinterfaces

C.

PIM sparse mode

D.

Passive-interface

Question 8
Single choice

Where is private IPv4 addressing used?

A.

On the endpoints of a VPN tunnel that traverses outside an administrator domain

B.

At a remote site that connects over public infrastructure to a hub

C.

Within an enterprise

D.

Over the internet

Question 9
Single choice

Which protocol allows VLANs to be dynamically configured between multiple switches?

A.

IGMP

B.

STP

C.

VTP

D.

802.1Q

Question 10
Single choice

Client A cannot reach client B by its hostname.

Which reason for the problem is most likely true?

A.

The connected router is using the default domain lookup configuration

B.

The hostname for client B is missing from the connected router

C.

A DNS server has been misconfigured

D.

Telnet has been disabled on the connected router.

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