1. A router boots and enters setup mode. What is the reason for this?
- A. Cisco IOS is missing from flash memory.
- B. The IOS image is corrupt.
- C. The configuration file is missing from NVRAM.
- D. The POST process has detected hardware failure.
If a router cannot locate the startup-config file in NVRAM it will enter setup mode to allow the configuration to be entered from the console device.
2. Which command is used to encrypt all passwords in a router configuration file?
- A. Router_A (config) # encrypt password
- B. Router_A (config) # enable secret <password>
- C. Router_A (config) # enable password <password>
- D. Router_A (config) # service password-encryption
The command service password-encryption is used to encrypt and secure plain-text
passwords configured on a router.
3. Company policy requires using the most secure method to safeguard access to the privileged exec and configuration mode on the routers. The privileged exec password is trustknow1. Which of the following router commands achieves the goal of providing the highest level of security?
- A. Secret password trustknow1
- B. Enable password trustknow1
- C. Service password-encryption
- D. Enable secret trustknow1
The command service password-encryption is used to encrypt and secure plain-text passwords configured on a router
4. What will be the response from the router after the command, "router(config)# hostname portsmouth" is entered?
- A. ? command not recognized router(config)#
- B. Invalid input detected
- C. Portsmouth(config)#
- D. Router (config-host)#
- E. Hostname = portsmouth portsmouth#
- F. Portsmouth#
The command hostname portsmouth is used to change the current router name to portsmouth.
5. An administrator is configuring a new router to permit out-of-band management access. Which set of commands will allow the required login using a password of cisco?
-
A. Router(config)# line console 0
Router(config-line)# password
cisco Router(config-line)# login
-
B. Router(config)# line vty 0 4
Router(config-line)# password
cisco Router(config-line)# login
-
C. Router(config)# line console 0
Router(config-line)# password
cisco Router(config-line)# exit
-
D. Router(config)# service password-encryption
Router(config)# line vty 0 4
Router(config-line)# password manage
Router(config-line)# exit Router(config)# enable password cisco
The VTY lines are the Virtual Terminal lines of the router, used solely to control inbound Telnet connections while console 0 is the physical console port on the switch/router you plug into. The line vty command is used to remote configure access into the switch/router via telnet or ssh.
6. Which command can be used on a Cisco router to display all interfaces, the IPv4 address assigned, and the current status?configuring a new router to permit out-of-band management access. Which set of commands will allow the required login using a password of cisco?
- A. Show ip route
- B. Ping
- C. Show interface fa0/1
- D. Show ip interface brief
The show ip interface brief command can be used on a Cisco router to display all interfaces, the IPv4 address assigned, and the current status.
7. Which CLI mode allows users to access all device commands, such as those used for configuration, management, and troubleshooting?
- A. Interface configuration mode
- B. Privileged EXEC mode
- C. User EXEC mode
- D. Global configuration mode
The command Router#configure terminal allows a user to enter the privileged mode from where the configuration,management and troubleshooting commands can be accessed.
8. What is the purpose of the startup configuration file on a Cisco router?
- A. To provide a limited backup version of the IOS, in case the router cannot load the full featured IOS
- B. To facilitate the basic operation of the hardware components of a device
- C. To contain the configuration commands that the router IOS is currently using
- D. To contain the commands that are used to initially configure a router on startup
The startup configuration file is stored in NVRAM and contains the commands needed to initially configure a router. It also creates the running configuration file that is stored in in RAM.
9. Which characteristic describes the default gateway of a host computer?
- A. The physical address of the switch interface connected to the host computer
- B. The physical address of the router interface on the same network as the host computer
- C. The logical address assigned to the switch interface connected to the router
- D. The logical address of the router interface on the same network as the host computer
The default gateway is the IP address of an interface on the router on the same network as the sending host.
10. What is the purpose of the banner motd command?
- A. It provides a way to make announcements to those who log in to a router.
- B. It is a way that routers communicate the status of their links with one another.
- C. It configures a message that will identify printed documents to LAN users.
- D. It provides an easy way of communicating with any user attached to a router's LANs.
The banner motd command is used to display a message when a user attempts to log into the router.
11. A technician is configuring a router to allow for all forms of management access. As part of each different type of access, the technician is trying to type the command login. Which configuration mode should be entered to do this task?
- A. User executive mode
- B. Any line configuration mode
- C. Global configuration mode
- D. Privileged EXEC mode
The command login is used to allow access to a router or switch through aux lines, console lines, and Telnet lines.
12. What is stored in the NVRAM of a Cisco router?
- A. The Cisco IOS
- B. The bootup instructions
- C. The startup configuration
- D. The running configuration
The Cisco IOS is stored in flash. The running configuration file is stored in RAM. The bootup instructions are stored in ROM. The startup configuration file is stored in NVRAM.
13. Which statement regarding the service password-encryption command is true?
- A. As soon as the service password-encryption command is entered, all currently set passwords formerly displayed in plain text are encrypted.
- B. To see the passwords encrypted by the service password-encryption command in plain text, issue the no service password-encryption command.
- C. It encrypts only line mode passwords.
- D. It is configured in privileged EXEC mode.
The command service password-encryption is used to encrypt all the clear text passwords in the running-configuration file.