network+ 1.1 to 1.3

You are the administrator of your company's network. You want to prevent unauthorized access to your intranet from the internet. Which of the following should you implement?

• ICS

• Firewall

• Proxy server

• Packet Internet Groper

Which of the following hardware devices links multiple networks and directs traffic between networks?

• Router

• Repeater

• Bridge

• Hub

An eight-port switch receives a frame on port number 1. The frame is addressed to an unknown device. What will the switch do?

• Drop the frame.

• Send the frame out all eight ports.

• Send the frame out the destination port.

• Send the frame out ports two through eight.

Which of the following hardware devices regenerates a signal out all connected ports without examining the frame or packet contents? (Select two.)

• Hub

• Bridge

• Router

• Repeater

• Gateway

When data is being sent out, how is it sent out in terms of the OSI Model? (Hint: Layer 7 to Layer 1)

• Application, Session, Data-Link, Physical, Network, Presentation, Transport

• Physical, Data-link, Network, Transport, Session, Presentation, Application

• Application, Physical, Session, Transport, Network, Data-link, Presentation

• None of these

• All of these

True or false. The router works in Layer 3

• True

• False

TCP/IP Model Layers (Select all that apply)

• Application

• Internet

• Network Access

• Host-to-Host

• All of these

__________ is made up of 32 hexadecimal numbers organized into 8 quartets.

Leading zeros can be omitted in each section.

• True

• False

In IPv6, the Prefix

• is the first 64 bits of the address

• is the last 32 bits of the address

• is the last 64 bits of the address

• is the first 32 bits of the address