Week 1

Communications on a network originate at the ​ (a)   .

• source
• destination
• switch
• node
• router

Information transmitted on a network is called a(n) ​ (a)   .

• data frame
• packet
• bit
• payload
• datagram
• segment

The process of HTTP asking TCP to send some data and making sure that it is received correctly is an example of what?

• Same-Layer interaction

• Adjacent-Layer interaction

• OSI Model

• All of these answers are correct

Which of the following correctly defines a WAN?

• A network contained within a single geographic location and usually connected by a privately maintained medium

• A network spread over multiple geographic areas and usually connected by publicly and privately maintained media

• A countywide network that spans multiple geographic locations

• A large network that is connected by both publicly and privately maintained cabling spread over multiple geographic regions

Which type of addresses do routers use?

• Logical

• Physical

• MAC

• Data Link

Which of the following best describes the Application layer

• Provides network services to the user

• Establishes communication between two devices

• Manages data flow between two networks

• Controls access to the network

Which of the following is true about the CSMA/CD algorithm?

• Collisions can happen, but the algorithm defines how the computers should notice a collision and how to recover.

• CSMA/CD is a type of encryption algorithm.

• CSMA/CD is a routing protocol used in networks.

• CSMA/CD is a type of data transmission protocol.

In the LAN for a small office, some user devices connect to the LAN using a cable, while others connect using wireless technology (and no cable). Which of the following is true regarding the use of Ethernet in this LAN?

• Only the devices that use cables are using Ethernet.

• All devices in the LAN are using Ethernet.

• Only the devices that use wireless technology are using Ethernet.

• Both the devices that use cables and wireless technology are using Ethernet.

Which of the following best describes the Network layer

• Handles routing information for data packets

• Establishes communication between two or more computers

• Ensures data is transmitted securely

• Provides access to shared resources

Each answer lists two types of devices used in a 100Base-T network. If these devices were connected with UTP Ethernet cables, which pairs of devices would require a straght-through cable?

• PC and switch

• Router and Hub

• Wireless access point (Ethernet Port) and switch

• Hub and Switch

• PC and router