10.9

Question 1

Which connection provides a secure CLI session with encryption to a Cisco network device?
	a console connection
	an AUX connection
	a Telnet connection
	an SSH connection

Answer 1

 an SSH connection*

Question 2

What function does pressing the Tab key have when entering a command in IOS?
 It aborts the current command and returns to configuration mode.
 It exits configuration mode and returns to user EXEC mode.
 It moves the cursor to the beginning of the next line.
 It completes the remainder of a partially typed word in a command.

Answer 2

 It completes the remainder of a partially typed word in a command.*

Question 3

What layer is responsible for routing messages through an internetwork in the TCP/IP model?
	internet
	transport
	network access
	session

Answer 3

 internet*

Question 4

Which statement accurately describes a TCP/IP encapsulation process when a PC is sending data to the network?
 Data is sent from the internet layer to the network access layer.
 Packets are sent from the network access layer to the transport layer.
 Segments are sent from the transport layer to the internet layer.
 Frames are sent from the network access layer to the internet layer.

Answer 4

 Segments are sent from the transport layer to the internet layer.*

Question 5

What unique address is embedded in an Ethernet NIC and used for communication on an Ethernet network?
	host address
	IP address
	MAC address
	network address
	k layer

Answer 5

 MAC address*

Question 6

Which procedure is used to reduce the effect of crosstalk in copper cables?
 requiring proper grounding connections
 twisting opposing circuit wire pairs together
 wrapping the bundle of wires with metallic shielding
 designing a cable infrastructure to avoid crosstalk interference
 avoiding sharp bends during installation

Answer 6

 twisting opposing circuit wire pairs together*

Question 7

During the encapsulation process, what occurs at the data link layer for a PC connected to an Ethernet network?
	An IP address is added.
	The logical address is added.
	The physical address is added.
	The process port number is added.

Answer 7

 The physical address is added.*

Question 8

What are two characteristics of Ethernet MAC addresses? (Choose two.)
 They are globally unique.
 They are routable on the Internet.
 They are expressed as 12 hexadecimal digits.
 MAC addresses use a flexible hierarchical structure.
 MAC addresses must be unique for both Ethernet and serial interfaces on a device.

Answer 8

 They are globally unique.*

 They are expressed as 12 hexadecimal digits.*

Question 9

If a device receives an Ethernet frame of 60 bytes, what will it do?
 drop the frame
 process the frame as it is
 send an error message to the sending device
 add random data bytes to make it 64 bytes long and then forward it

Answer 9

 drop the frame*

Question 10

Under which two circumstances will a switch flood a frame out of every port except the port that the frame was received on? (Choose two.)
 The frame has the broadcast address as the destination address.
 The destination address is unknown to the switch.
 The source address in the frame header is the broadcast address.
 The source address in the frame is a multicast address.
 The destination address in the frame is a known unicast address.

Answer 10

 The frame has the broadcast address as the destination address. *
 The destination address is unknown to the switch.*