Introduction to Routers in Data Communications

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What is the primary function of Cisco IOS in Cisco devices?

To compress files in flash memory

To provide reliable and secure access to networked resources

To provide basic routing and switching functions (correct)

To provide network scalability

What is the storage location of the IOS file?

CLI memory

Flash memory (correct)

Networked resources

Semipermanent memory area

What is the main difference between the two forms of IOS?

One is for CLI access and the other is for graphical interface

One is for routers and the other is for switches

One is for compressed files and the other is for uncompressed files (correct)

One is for network scalability and the other is for network security

What is the primary purpose of a console port on a router or switch?

To provide out-of-band access to a router for management purposes Signup and view all the answers

What is the role of the CLI in accessing Cisco IOS services?

It varies based on the version of the IOS and the type of device Signup and view all the answers

Which of the following is a method of accessing the CLI environment?

All of the above Signup and view all the answers

What is the size of the IOS file?

Several megabytes Signup and view all the answers

What is the purpose of routers in a network?

To differentiate between devices Signup and view all the answers

What type of connection is used to connect a computer or terminal to the console port on a router or switch?

Low-speed serial connection Signup and view all the answers

What is the purpose of a console session, also known as the CTY line?

To access the device when networking services are not available Signup and view all the answers

Which of the following is NOT a type of network module?

HWIC-3T Signup and view all the answers

What is the name of the interface that is typically used for accessing the device when networking services are not available?

Console 0/0 Signup and view all the answers

What is an example of console use?

Initial configuration of a network device Signup and view all the answers

What is the purpose of a RJ-45 to DB9 converter?

To convert a RJ-45 signal to a DB9 signal for console use Signup and view all the answers

What is a vty session?

A CLI session created for a Telnet session Signup and view all the answers

What is the primary difference between SSH and Telnet?

SSH is more secure than Telnet Signup and view all the answers

What is the purpose of the AUX port?

To establish a remote CLI session using a modem Signup and view all the answers

What is a method for remotely accessing a CLI session?

Using a Telnet session Signup and view all the answers

What is the primary purpose of using the AUX port locally?

When there are problems using the console port Signup and view all the answers

What is the typical location of a DCE device?

At the WAN access provider end of the link Signup and view all the answers

What type of files contain the Cisco IOS Software commands used to customize the functionality of a Cisco device?

Configuration files Signup and view all the answers

What happens to the commands in the configuration files when the system is booted?

They are parsed and executed by the Cisco IOS Software Signup and view all the answers

What is the purpose of a DTE device?

To receive clocking services from another device Signup and view all the answers

What is required for the operation of network devices?

Both operating system and configuration files Signup and view all the answers

What is the primary purpose of the startup configuration file?

To configure the device during system startup Signup and view all the answers

Where is the startup configuration file stored?

In Non-Volatile RAM (NVRAM) Signup and view all the answers

What happens to the running configuration when the network administrator makes changes to the device's configuration?

The changes are immediately applied to the device's operation Signup and view all the answers

What is the primary purpose of the running configuration file?

To operate the network device during its current operation Signup and view all the answers

What is the relationship between the running configuration file and the startup configuration file?

The running configuration file is used during device operation, while the startup configuration file is used during system startup Signup and view all the answers

What is NOT a function of the configuration files?

Storing network administrator notes Signup and view all the answers