quiz 1

At what layer of the OSI model do the IP, ICMP, and ARP protocols operate? a. Network b. Session c. Transport d. Application

a. Network

What federal agency is charged with safety and health in the workplace? a. Occupational Safety and Health Administration (OSHA) b. Workplace Safety and Hazard Administration (WSHA) c. Office Safety and Standards Department (OSSD) d. Hazardous Materials and Safety Management (HMSM)

a. Occupational Safety and Health Administration (OSHA)

In the United States, who is able to activate the Emergency Alert System at the national level? a. The President b. The Federal Bureau of Investigation c. Local law enforcement d. Any U.S. state or territory

a. The President

HTTP, IMAP4, FTP, and Telnet are all examples of protocols that operate at what layer of the OSI model? a. Layer 5 b. Layer 6 c. Layer 7 d. Layer 4

c. Layer 7

The Windows Remote Desktop application utilizes what protocol to provide secure, encrypted transmissions? a. File Transfer Protocol (FTP) b. Secure Sockets Layer (SSL) c. Remote Desktop Protocol (RDP) d. Secure Shell (SSH)

c. Remote Desktop Protocol (RDP)

What mail protocol is used to send mail messages to a server? a. IMAP4 b. POP3 c. SMTP d. HTTPS

c. SMTP

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? a. Session Layer b. Application Layer c. Presentation Layer d. Transport Layer

a. Session Layer

Which of the following is not one of the disadvantages of peer-to-peer networks? a. They lack scalability. b. They centralize user account logins. c. They are not necessarily secure. d. They are impractical for connecting large numbers of computers.

b. They centralize user account logins.

An open electrical circuit as a result of a failed circuit breaker is considered to be what type of failure system? a. fail-dynamic b. fail-close c. fail-open d. fail-tolerant

b. fail-close

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? a. extinguishing medium b. fire suppression agent c. fire extinction agent d. eliminating factor

b. fire suppression agent

The Data Link Layer utilizes what name for its protocol data unit (PDU)? a. bit b. frame c. packet d. data

b. frame

When dealing with static electricity, what kind of failure caused by static discharge shortens the life of a component, and can cause intermittent errors? a. temporary failure b. upset failure c. catastrophic failure d. interrupting failure

b. upset failure

What is the minimal amount of voltage required to damage an electrical component? a. 100 volts b. 5 volts c. 10 volts d. 1500 volts

c. 10 volts

In the TCP/IP model, what layer combines the responsibilities of the Application, Presentation, and Session layers from the OSI model? a. Application b. Transport c. Internet d. Link

a. Application

What is a defining characteristic of a bus topology based network? a. Devices are daisy-chained together in a single line. b. Devices are directly attached to a network router, which forwards data to intended destinations. c. Devices are connected to two adjacent devices, and communication priority is granted by a token. d. Devices are connected directly to a centralized networking device, known as a network switch.

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

What is assigned to each node on a network, which is then used by the Network layer to uniquely identify the node? a. autonomous system address b. port address c. MAC address d. IP address

d. IP address

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. PAC (Packet Access Control) address b. DAC (Data Access Control) address c. DAC (Digital Access Control) address d. MAC (Media Access Control) address

d. MAC (Media Access Control) address

What occurs if a network layer protocol is aware that a packet is larger than the maximum size for its network? a. The packet will be dropped silently, requiring the communicating application try again. b. The protocol will notify a network router capable of receiving the packet, and a new path will be used to the destination. c. The protocol will send an ICMP message to the destination, requesting a larger packet size be allowed. d. The packet will be divided into smaller packets using fragmentation.

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

The TCP and UDP protocols both exist at what layer of the OSI model? a. Network b. Application c. Presentation d. Transport

d. Transport

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-tolerant b. fail-oriented c. fail-close d. fail-open

d. fail-open

If your network consists of all connected devices connecting to one central device, such as a switch, what type of topology is being used? a. mesh topology b. bus topology c. star bus topology d. star topology

d. star topology

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. b. The modification of headers from a higher layer in the OSI model. c. The subtraction of a header from data inherited from the layer below in the OSI model. d. The addition of a trailer to data inherited from the layer above in the OSI model.

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

At what layer of the OSI model does a network switch normally operate? a. Layer 5 b. Layer 2 c. Layer 4 d. Layer 3

b. Layer 2

The proper handling procedures for substances such as chemical solvents is typically outlined in which of the following options? a. Dangerous and Hazardous Waste Disposal Sheet (DHWDS) b. Material Safety Data Sheet (MSDS) c. Toxic Chemical Safety Procedure (TCSP) d. Environmental Chemical Hazard Sheet (ECHS)

b. Material Safety Data Sheet (MSDS)

In the TCP/IP model, what layer is considered so simple that it is ignored entirely? a. Data Link b. Physical c. Application d. Network

b. Physical

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? a. HTTP b. SNMP c. SMTP d. POP3

b. SNMP

In considering the responsibilities of each layer of the OSI model, what statement accurately reflects those of the Presentation layer? a. The Presentation layer is responsible for describing how data between applications is synced and recovered if messages don't arrive intact at the receiving application. 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. c. The Presentation layer is responsible for transporting Application layer payloads from one application to another. d. The Presentation layer describes the interface between two applications, each on separate computers.

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.

In a domain, the process of allowing a user to sign on to the network from any computer on the network and get access to resources is managed by what service? a. Windows Named Resource Services (WN RS) b. Automated Directory Network Services (AD NS) c. Active Directory Domain Services (AD DS) d. Active Directory Federated Users (AD FU)

c. Active Directory Domain Services (AD DS)

What statement accurately reflects what occurs when a message is too large to transport on a network? a. An ICMP error is generated, and the application must reformat the data for transmission. b. The message is divided into smaller messages called segments (for TCP) or datagrams (for UDP). c. The message is discarded and must be sent again. d. The message is sent anyway, and is received by the destination as garbage data.

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

What is the most popular web server application? a. Microsoft Internet Information Services b. Lighttpd c. Apache d. NGINX

c. Apache