INTRODUCTION TO NETWORK

When data is encoded as pulses of light, identify which media is being used to transmit the data?

• Copper Cable
• Fiber Optic Cable
• Wireless
• Switch

Give the type of network traffic that requires Quality of Services (QoS).

• Email
• Wiki
• Online purchasing
• Video conferencing

Select the characteristic of a network enables it to quickly grow to support new users and applications without impacting the performance of the service being delivered to existing users?

• Reliability
• Accessibility
• Quality of Service
• Scalability

A worker accidentally damages a fiber optic cable that connects two of the existing dormitories to the campus data center. Although the cable has been cut, students in the dormitories only experience a very short interruption of network services. Choose the characteristic of the network is shown here?

• Security
• Integrity
• Quality of Service
• Fault Tolerance

Refer to the Figure 2 below. A network administrator is configuring the MOTD on switch SW1. Identify the purpose of the command in Figure 2.

• To display a warning message to unauthorized personnel from attempting to access the device
• To force users of the Admin group to enter a password for authentication
• To configure switch SW1 so that only the users in the Admin group can telnet into SW1
• To configure switch SW1 so that the message will display when a user enters the enable command

Select command that will prevent all unencrypted passwords from displaying in plain text in a configuration file?

• (config)# enable password secret
• (config)# enable secret Secret Password
• (config-line)# password secret
• service password-encryption

Identify the type of communication that will send a message to all devices on a local area network.

• Broadcast
• Multicast
• Unicast
• Allcast

In computer communication, define what is the purpose of message encoding?

• To interpret information
• To convert information to the appropriate form for transmission
• To negotiate correct timing for successful communication
• To break large messages into smaller frames

Identify which layer of the OSI model defines services to segment and reassemble data for individual communications between end devices?

• Presentation
• Transport
• Session
• Application

Choose the CORRECT statement about the purpose of protocols in data communication.

• Dictating the content of the message sent during communication.
• Specifying the bandwidth of the channel or medium for each type of communication.
• Providing the rules required for a specific type of communication to occur.
• Specifying the device operating systems that will support the communication.