Mod 2

Question 1

What should be done regardless of the default behavior of a new switch?

Answer 1

All switches should be configured and secured.

Question 2

What is the purpose of a console port?

Answer 2

Provides out-of-band access to a Cisco device for maintenance purposes.

Question 3

Fill in the blank: Out-of-band access refers to access via a dedicated management channel used for _______.

Answer 3

[device maintenance purposes]

Question 4

What is required for a console connection?

Answer 4

A computer running terminal emulation software and a special console cable.

Question 5

What is SSH used for in networking?

Answer 5

Establishing a secure CLI connection remotely over a network.

Question 6

True or False: SSH connections require active networking services on the device.

Answer 6

True

Question 7

What do most versions of Cisco IOS include for SSH?

Answer 7

An SSH server and an SSH client.

Question 8

What is Telnet?

Answer 8

An insecure in-band method for establishing a CLI session.

Question 9

Fill in the blank: SSH connections are established through a _______.

Answer 9

[virtual interface]

Question 10

What is the main difference between console access and SSH?

Answer 10

Console access does not require networking services; SSH does.

Question 11

What does GUI stand for?

Answer 11

Graphical User Interface

GUI allows users to interact with electronic devices through graphical icons and visual indicators.

Question 12

Name three operating systems that utilize a GUI.

Answer 12

• Windows
• macOS
• Linux KDE
• Apple iOS
• Android

These operating systems provide user-friendly environments for interaction.

Question 13

True or False: A GUI requires extensive knowledge of the underlying command structure.

Answer 13

False

GUIs are designed to be user-friendly and reduce the need for knowledge of command structures.

Question 14

Fill in the blank: A GUI allows users to interact with the system using _______.

Answer 14

graphical icons, menus, and windows

These elements make the interface accessible and intuitive.

Question 15

What is one advantage of using a GUI over a command-line interface?

Answer 15

More user-friendly

GUIs are designed to be intuitive, making them easier for most users.

Question 16

What is the primary function of a GUI?

Answer 16

To facilitate user interaction with the system

GUIs enable users to perform tasks without needing to understand complex commands.

Question 17

List two characteristics of GUI environments.

Answer 17

• Use of graphical icons
• Inclusion of menus and windows

These characteristics enhance user experience and accessibility.

Question 18

What is the purpose of a PC operating system?

Answer 18

To enable users to:
* Use a mouse to make selections and run programs
* Enter text and text-based commands
* View output on a monitor

PC operating systems provide a graphical user interface (GUI) for user interaction.

Question 19

What does a CLI-based network operating system enable a network technician to do?

Answer 19

To:
* Use a keyboard to run CLI-based network programs
* Use a keyboard to enter text and text-based commands
* View output on a monitor

CLI stands for Command Line Interface.

Question 20

What is the Cisco IOS?

Answer 20

It is the operating system used by Cisco networking devices.

IOS stands for Internetwork Operating System.

Question 21

What is the function of the auxiliary (AUX) port in networking devices?

Answer 21

The AUX port is used to establish a CLI session remotely over a telephone connection using a modem.

Question 22

What is required for the AUX port to operate?

Answer 22

The AUX port does not require networking services to be configured or available.

Question 23

Fill in the blank: The AUX port is similar to a _______ connection.

Answer 23

[console]

Question 24

True or False: The AUX port can be used to connect to a network without any prior configuration.

Answer 24

True

Question 25

What type of devices may support an AUX port?

Answer 25

Some devices, such as routers.

Question 26

What is the purpose of the console port on a Cisco device?

Answer 26

Provides out-of-band access for device maintenance ## Footnote Out-of-band access is via a dedicated management channel, accessible even if no networking services are configured.

Question 27

What type of connection does SSH establish?

Answer 27

In-band secure CLI connection ## Footnote SSH is established through a virtual interface over a network and requires active networking services.

Question 28

What is required for a console connection?

Answer 28

A computer running terminal emulation software and a special console cable ## Footnote This setup allows access to the Cisco device for initial configuration.

Question 29

Is Telnet a secure method for remote connections?

Answer 29

No, Telnet is insecure and does not provide encryption ## Footnote User authentication and commands are sent in plaintext.

Question 30

What is the recommended best practice for remote CLI connections?

Answer 30

Use SSH instead of Telnet ## Footnote SSH provides a secure and encrypted connection, while Telnet does not.

Question 31

What does SSH require for establishment on a Cisco device?

Answer 31

Active networking services and an interface configured with an address ## Footnote Most versions of Cisco IOS include both an SSH server and client.

Question 32

What type of connection is Telnet considered?

Answer 32

In-band connection ## Footnote Telnet is used to establish a CLI session through a virtual interface over a network.

Question 33

Fill in the blank: The console port provides _______ access to a Cisco device.

Answer 33

out-of-band

Question 34

True or False: SSH is less secure than Telnet.

Answer 34

False ## Footnote SSH is a secure method, while Telnet is insecure.

Question 35

What types of software does Cisco IOS include for Telnet?

Answer 35

Telnet server and Telnet client ## Footnote This allows for remote CLI sessions using Telnet.

Question 36

What is User Exec Mode?

Answer 36

A mode that allows access to only a limited number of basic monitoring commands. ## Footnote Often referred to as 'view-only' mode.

Question 37

What is Privileged EXEC Mode?

Answer 37

A mode that allows access to all commands and features, enabling users to execute configuration and management commands. ## Footnote Users can also use any monitoring commands in this mode.

Question 38

What is the default device prompt for a switch?

Answer 38

Switch> ## Footnote This indicates that the device is in User Exec Mode.

Question 39

What is the default device prompt for a router?

Answer 39

Router> ## Footnote This indicates that the device is in User Exec Mode.

Question 40

What is the default device prompt for a switch in Privileged EXEC Mode?

Answer 40

Switch# ## Footnote This indicates that the device has elevated privileges.

Question 41

What is the default device prompt for a router in Privileged EXEC Mode?

Answer 41

Router# ## Footnote This indicates that the device has elevated privileges.

Question 42

What is the commonly used term for global configuration mode?

Answer 42

Global config mode ## Footnote Global configuration mode is essential for making changes that affect the device's overall operation.

Question 43

How is global configuration mode identified in the CLI?

Answer 43

By a prompt that ends with (config)# after the device name ## Footnote Example: Switch(config)#

Question 44

What are the two common subconfiguration modes?

Answer 44

* Line Configuration Mode * Interface Configuration Mode ## Footnote These modes allow configuration of specific parts or functions of the device.

Question 45

What is Line Configuration Mode used for?

Answer 45

To configure console, SSH, Telnet, or AUX access ## Footnote Line Configuration Mode allows access configuration for remote management.

Question 46

What is Interface Configuration Mode used for?

Answer 46

To configure a switch port or router network interface ## Footnote This mode is critical for setting up network interfaces.

Question 47

What does the command-line prompt indicate in the CLI?

Answer 47

The current mode of operation ## Footnote Each mode has a unique prompt that helps the user identify their current configuration context.

Question 48

What is the default prompt for line configuration mode?

Answer 48

Switch(config-line)# ## Footnote This prompt indicates that the user is in line configuration mode.

Question 49

What is the default prompt for interface configuration mode?

Answer 49

Switch(config-if)# ## Footnote This prompt indicates that the user is in interface configuration mode.

Question 50

To secure user EXEC mode for the console, you must first enter 1. ______ configuration mode using the **2.** ______ **3.** ______ global config command. Then, set the password with the **4.** ______ command and finally enable access with the **5.** ______ command.

Answer 50

1. line console 2. line 3. console 0 4. password [your_password] 5. login

Question 51

When you first connect to a Cisco device, you are placed in 1. ______ mode. To add a password to this mode for the console port, you navigate to line configuration mode. The command to enter this mode is **2.** ______. The password itself is set with the **3.** ______ command, and access is enabled by issuing the **4.** ______ command.

Answer 51

1. user EXEC 2. line console 0 3. password 4. login

Question 52

The global configuration command used to secure access to the most important administrative mode is **1.** ______.

Answer 52

enable secret

Question 53

After securing the console with a password for 1. ______ mode, you must also secure the more powerful 2. ______ mode to prevent unauthorized configuration changes. This is done from global config mode with the **3.** ______ command.

Answer 53

user EXEC privileged EXEC enable secret

Question 54

To gain full administrator access to all commands, you must enter 1. ______ EXEC mode. This mode is secured using the global configuration command **2.** ______.

Answer 54

privileged enable secret

Question 55

1. ______ lines enable remote access to a device using protocols like Telnet or SSH. To secure them, you enter configuration mode for all lines with the **2.** ______ command. You then set a password and enable access with the **3.** ______ command

Answer 55

VTY (Virtual Terminal) line vty 0 15 login

Question 56

Which of the following is the correct sequence of commands to secure remote Telnet/SSH access (VTY lines) on a Cisco device? A. enable secret -> login -> line vty 0 15 B. line vty 0 15 -> password *cisco* -> login C. login -> password *cisco* -> line console 0 D. line vty 0 15 -> login -> enable secret *cisco*

Answer 56

Answer: B. line vty 0 15 -> password *cisco* -> login Explanation: You must first enter the appropriate line configuration mode using line vty 0 15. Then, you specify the password that will be used for access with the password command. Finally, you enable the password check at login with the login command.

Question 57

The 1. _________ global configuration command is used to apply weak encryption to plaintext passwords in the configuration file, preventing them from being easily read. The primary purpose of this command is to 2. _________. 1. A) enable secret B) crypto key generate rsa C) service password-encryption D) username secret 2. A) secure passwords as they are sent over the network B) encrypt all passwords in the device's memory (RAM) C) keep unauthorized individuals from viewing passwords in the configuration file D) automatically create a strong encrypted password for the enable mode

Answer 57

1. C) service password-encryption 2. C) keep unauthorized individuals from viewing passwords in the configuration file

Question 58

You need to configure a Message of the Day (MOTD) banner that says "UNAUTHORIZED ACCESS PROHIBITED" on a Cisco device. Which is the correct command sequence? A. config-term # banner motd UNAUTHORIZED ACCESS PROHIBITED # B. banner motd # UNAUTHORIZED ACCESS PROHIBITED # C. enable banner # UNAUTHORIZED ACCESS PROHIBITED # D. motd banner "UNAUTHORIZED ACCESS PROHIBITED"

Answer 58

Correct Answer: B. banner motd # UNAUTHORIZED ACCESS PROHIBITED # Explanation: The command must be entered in global configuration mode, which the question implies you are already in. The correct syntax begins with banner motd. A delimiting character (like #) is used immediately after the command to mark the start and end of the message text. This character must not appear in the message itself.

Question 59

After configuring passwords and a banner on a switch, you power it off for the night. When you power it back on the next morning, you find that all your configurations are lost. This is because you failed to save the changes from the __________ to the __________. A) NVRAM; RAM B) startup-config; running-config C) RAM; Flash D) running-config; startup-config

Answer 59

Correct Answer: D. running-config; startup-config Explanation: The running-config is stored in volatile RAM and is lost on a power cycle. The startup-config is stored in non-volatile NVRAM and is loaded at bootup. To make changes permanent, you must copy the running-config to the startup-config using the copy running-config startup-config command.

Question 60

When configuring a host with the IP address 192.168.1.10, the subnet mask 255.255.255.0 is required to _________. The IP address 192.168.1.1, configured as the default gateway, is the address of the _________. A) encrypt the host's traffic; switch to which the host is connected B) identify the network portion of the address; router used to reach remote networks C) assign a unique physical address; firewall protecting the network D) determine the IP version being used; DNS server for name resolution

Answer 60

Correct Answer: B. identify the network portion of the address; router used to reach remote networks Explanation: The subnet mask's job is to separate the IP address into a network portion and a host portion, defining the local subnet. The default gateway is the IP address of a local router that a host uses to communicate with devices on other networks.

Question 61

QoS stands for

Answer 61

Quality of Services and is a networking and telecommunications strategy for managing network traffic by prioritizing certain data types over others to ensure consistent performance for critical applications, such as voice calls or video conferencing.