General

Question 1

This protocol sends messages and error reports through the network.

Answer 1

ICMP

Question 2

Services associated with email include:

Answer 2

POP3
IMAP (Internet Message Access Protocol)
SMTP

Question 3

You issue a ‘show arp’ command on your router and in the age column you see a - instead of a number. What does this indicate?

Answer 3

The mapping will never expire (until the router reboots or the ARP cache is manually cleared)

Question 4

Which command will you type to map a hostname to an IP address on your router?

RouterA(config)#ip host 192.168.1.1 firewall1

RouterA(config)#ip host firewall1 192.168.1.1

RouterA(config)#host 192.168.1.1 firewall1

RouterA(config)#map host 192.168.1.1 firewall1

Answer 4

RouterA(config)#ip host firewall1 192.168.1.1

Question 5

There is a very large amount of late collisions on an Ethernet interface. What is the most likely cause?

Duplex Mismatch
Shut Interface
Wrong Cable Type
Cable Too Short

Answer 5

Duplex Mismatch

Question 6

The Cisco hierarchical network model includes which layers?
Core
Access
Distribution
Secure
DMZ

Answer 6

Core
Distribution
Access

Question 7

Which cable type is suitable for fiber?
1000BASE-CS
1000BASE-LX
1000BASE-T
1000BASE-TF

Answer 7

1000BASE-LX

Question 8

What is the correct bits per second (BAUD rate) to use the console port on a router?

1200
2400
9600
5600

Answer 8

9600

Question 9

What are the four available Ethernet frame types?

Ethernet 802.2 SAP
Ethernet 802.2 SNAP
Ethernet 802.3
Ethernet II
Ethernet III
New Ethernet

Answer 9

Ethernet 802.2 SAP
Ethernet 802.2 SNAP
Ethernet 802.3
Ethernet II

Question 10

___ is used by a router to store the running configuration?

Answer 10

DRAM

Question 11

Which command will reduce the startup configuration memory usage?

Service compress
Service compress-config
Compress-config
Squash mem

Answer 11

Compress-config

Question 12

Which security mechanism can identify and block invalid STP traffic from a workstation?

Broadcast Guard
BPDU Guard
DHCP Snooping
QoS
Flood Guard

Answer 12

BPDU Guard

Question 13

What happens when a switch port configured with BPDU guard receives a BPDU from a connected device?

Answer 13

The switch port is automatically put into an error-disabled state because workstations should not be generating or sending BPDU frames.

Question 14

What does BPDU stand for?

Answer 14

Bridge Protocol Data Unit

Question 15

What is Flood Guard?

Answer 15

Helps prevent network congestion due to network flooding through broadcast, multicast, or unknown unicast traffic. (DoS)

Question 16

What is the “dig” command used for?

Answer 16

Interrogating DNS servers.

Question 17

What is a CSU/DSU?

Answer 17

Channel service unit/data service unit

Question 18

What is commonly labeled on a CSU/DSU?

Version Number
IP Utilization
Application Type
Speed and duplex
Circuit ID

Answer 18

Circuit ID

Question 19

What is true of a stateful firewall?

Answer 19

Connections are tracked and monitored, allowing data to flow dynamically in and out of a network while still excluding externally sourced traffic.

Question 20

What does ARP stand for?

Answer 20

Address Resolution Protocol

Question 21

Which of the following protocols was originally designed for UNIX?

VNC
VPN
ICA
RDP

Answer 21

VNC

Question 22

Which protocol in IPsec provides both authentication and encryption?

Answer 22

ESP

Question 23

What does ESP stand for?

Answer 23

Encapsulating Security Payload

Question 24

What does the priority in an MX record indicate for a sending server?

The order in which mail servers are checked for updates

The quota for incoming mails

The order in which mail servers are contacted to send mail

The volume of mail that can be handled by the server

Answer 24

The order in which mail servers are contacted to send mail