Network+ 8th Edition Chapter 1

13. What federal agency is charged with safety and health in the workplace?

a. Occupational Safety and Health Administration (OSHA)

17. Which of the following is an example of encapsulation?

a. The addition of a header to data inherited from the layer above in the OSI model.

3. In considering the responsibilities of each layer of the OSI model, what statement accurately reflects those of the Presentation layer?

b. The Presentation layer is responsible for reformatting, compressing, and/or encrypting data in a way that the application on the receiving end can read.

20. In the TCP/IP model, what layer is considered so simple that it is ignored entirely?

c. Physical

4. What mail protocol is used to send mail messages to a server?

c. SMTP

2. What Application layer protocol can be used to monitor and gather information about network traffic and can alert network administrators about adverse conditions that need attention?

c. SNMP

19. What layer of the OSI model describes how data between applications is synced and recovered if messages don't arrive intact at the receiving application?

c. Session Layer

9. In the United States, who is able to activate the Emergency Alert System at the national level?

c. The President

7. What statement accurately reflects what occurs when a message is too large to transport on a network?

c. The message is divided into smaller messages called segments (for TCP) or datagrams (for UDP).

25. The TCP and UDP protocols both exist at what layer of the OSI model?

c. Transport

23. HTTP, IMAP4, FTP, and Telnet are all examples of protocols that operate at what layer of the OSI model?

d. Layer 7

18. The proper handling procedures for substances such as chemical solvents is typically outlined in which of the following options?

d. Material Safety Data Sheet (MSDS)

16. At what layer of the OSI model do the IP, ICMP, and ARP protocols operate?

d. Network

1. The Windows Remote Desktop application utilizes what protocol to provide secure, encrypted transmissions?

d. Remote Desktop Protocol (RDP)

12. What occurs if a network layer protocol is aware that a packet is larger than the maximum size for its network?

d. The packet will be divided into smaller packets using fragmentation.

10. In the TCP/IP model, what layer combines the responsibilities of the Application, Presentation, and Session layers from the OSI model?

a. Application

22. At what layer of the OSI model does a network switch normally operate?

a. Layer 2

6. The frame header at the Data Link layer includes hardware addresses of the source and destination NICs. What is another name for this address?

a. MAC (Media Access Control) address

14. What is assigned to each node on a network, which is then used by the Network layer to uniquely identify the node?

b. IP address

11. A policy in which all exit doors for a building stay unlocked during a fire is an example of what type of policy?

a. fail-open

21. What is the minimal amount of voltage required to damage an electrical component?

b. 10 volts

24. In a fire suppression system, what term is used to describe what is typically a foaming chemical, gas, or water that is sprayed everywhere to put out a fire?

b. fire suppression agent

8. What is a defining characteristic of a bus topology based network?

c. Devices are daisy-chained together in a single line.

15. Which of the following is not one of the disadvantages of peer-to-peer networks?

d. They centralize user account logins.

5. The Data Link Layer utilizes what name for its protocol data unit (PDU)?

d. frame