Deck 15: Operating Cisco Routers

Question 1

What name is used to refer to the piece of equipment that connects a router (serial interface) to a leased line provider?

A) CSU/DSU
B) Ethernet switch
C) Frame Relay switch
D) RTS/CTS

Answer 1

CSU/DSU

Question 2

The WAN cable that is installed by a telco provider typically has an ________ connector.

A) RJ-45
B) RJ-48
C) RJ-14
D) RJ-11

Answer 2

RJ-48

Question 3

The CSU/DSU converts the Layer ________ standards between the telco and the serial interface.

A) 2
B) 3
C) 1
D) 4

Answer 3

1

Question 4

Which router interface type can be configured with an encapsulation of HDLC or PPP?

A) Ethernet
B) Serial
C) WAN
D) Parallel

Question 5

Which Cisco IOS command can be used to display a list of basic IP information with a single line per interface, including IP address and interface status?

A) show interfaces
B) show interfaces brief
C) show ip interface brief
D) show ip interface

Question 6

Which interface status code type is generally used to display the Layer 2 status of an interface?

A) Line status
B) Interface status
C) Protocol status
D) MAC status

Question 7

If an interface shows a status of Up/Down, what is the most likely cause of the problem to be investigated?

A) Physical line status
B) IP configuration
C) TCP/UDP configuration
D) Layer 2 configuration

Question 8

What Cisco IOS command is used to enable the use of IPv4 routing on a Cisco device?

A) ip routing
B) ip unicast-routing
C) ip routing enable
D) ip enable routing

Question 9

What Cisco IOS command is used to display the status information of the interfaces on a Cisco device, including IP address and mask information, in the briefest format possible?

A) show ip interface
B) show protocols
C) show ip interface brief
D) show interfaces

Question 10

When connecting two routers via a serial interface, which Cisco IOS command is required to set the line rate of the interface, and on which side of the connection would it be configured?

A) bandwidth, DTE
B) bandwidth, DCE
C) clock rate, DCE
D) clock rate, DTE

Question 11

Which Cisco IOS command is used to display the type of serial cable connected to an interface?

A) show serial cable
B) show cable type
C) show controllers
D) show interfaces

Question 12

Which of the following is the correct next step in physically installing a router after the LAN cables are connected to LAN ports when using an external CSU/DSU?

A) Connect the router's serial interface to the CSU/DSU and the CSU/DSU line from the telco.
B) Connect the router's serial interface to the line from telco.
C) Connect the router's console port to a PC to configure the router.
D) Connect a power cable from a power outlet to the power port on the router.

Question 13

Which of the following is the correct next step in physically installing a router after connecting the router's serial interface to the line from the telco?

A) Power on the router.
B) Connect the router's serial interface to the CSU/DSU.
C) Connect the router's console port to a PC to configure the router.
D) Connect a power cable from a power outlet to the power port on the router.

Question 14

Which of the following is TRUE of both Cisco switches and routers?

A) They both configure IP addresses using a VLAN interface.
B) They both have an auxiliary port, which can be connected to an external modem.
C) They both support configuring Ethernet speeds using the speed and duplex commands.
D) They both disallow Telnet and SSH into the device by default.

Question 15

Which of the following does NOT apply to both Cisco switches and routers?

A) The device supports User and Enable modes.
B) The device allows configuration of the console, Telnet, and enabling secret passwords.
C) The device uses a VLAN to configure IP addresses.
D) The device allows configuration of the hostname and interface description.