Networking Equipment

Question 1

Provide 3 characteristic features of cable modems

Answer 1

• Cabling that carries TV Signals
• Coaxial Cabling
• Shared Bandwidth

Question 2

Provide 3 characteristic features of DSL modems

Answer 2

• Cabling that carries Telephone lines
• Twisted-Pair Cabling
• Dedicated Bandwidth

Question 3

A physical network device or software solution designed for managing the optimal distribution of workloads across multiple computing resources is known as

Answer 3

Load Balancer

Question 4

In computer networking, a computer system or application that acts as an intermediary between another computer and the Internet is commonly referred to as

Answer 4

Proxy Server

Question 5

A system that refers to industrial and manufacturing control system is known as

Answer 5

SCADA

Supervisory Control and Data Aquisition

Question 6

When manually configuring a network adapter, what are 4 items that are required?

Answer 6

• IP Address
• Subnet Mask
• Default Gateway
• DNS Server Address

Question 7

The functionality of a Network Interface Card (NIC) can be checked by:

Answer 7

Pinging any of the following:

• localhost
• ::1
• 127.0.0.1

Question 8

What tool allows you to identify a bad port on a network device?

Answer 8

Loopback Plug

Question 9

A network admin can ping remote host by its IP address, but not by its domain name. Which of the following is the most probable source of this problem?

Answer 9

Unable to communicate with the Domain Name System (DNS) Server

Question 10

In Voice over Internet Protocol (VoIP) communication, what term refers to a data packet delay that adversely affects the quality of the transmission.

Answer 10

Jitter

Question 11

What term refers to a condition where port light on a network device rapidly alternates between up and down states. This problem is usually related to faulty or unsupported cable and/or incorrect link synchronization settings such as speed and duplex mismatch

Answer 11

Port Flapping

Question 12

Network Adapters have 3 ways of transmissing data.

List and describe them

Answer 12

• Simplex - Data only goes one way
• Half Duplex - Data goes both ways, but takes turns sending and receiving
• Full Duplex - Data goes both ways and can occur simultaneously

Question 13

What is QoS?

Answer 13

Quality of Service. It is used to prioritize network traffic.

Question 14

What is a Spanning Tree Protocol? (STP)

Answer 14

A protocol that allows for redundant links between switches

Question 15

What is the DHCP Process?

Answer 15

1. Discover (Client finds DHCP server)
2. Offer IP (Server to Client)
3. Request IP (Client to Server)
4. Accept IP (Client)

D.O.R.A.

Question 16

What is ARP and what is it used for?

Answer 16

Address Resolution Protocol
* Maps MAC Addresses to IP Addresses

Question 17

What is RARP and what is it used for?

Answer 17

Reverse Address Resolution Protocol
* Maps IP Addresses to MAC Addresses

Question 18

Describe public network setting in Windows?

Answer 18

• Used for untrusted network, such as a WiFi network at a coffee shop
• The PC remains hidden from other devices on the network
• The PC can’t be used for file and printer sharing

Question 19

Describe private network setting in Windows?

Answer 19

• Used for trusted networks, such as home or work networks
• Enables the PC to become discoverable to other devices on the network
• Enables the PC to be used for file and printer sharing

Question 20

Describe Domain network setting in Windows?

Answer 20

• Applied to networks where the Windows device can authenticate to a domain controller.