101 Week 1

The Transport layer header addresses a receiving application by a number called a MAC address. True False

False

The protocol data unit for the Physical layer of the OSI model is payload, or data. True False

False

After a problem and its symptoms have been identified, a theory regarding a probable cause should be established. True False

True

In general, an API (application programming interface) call is the method an application uses when it makes a request of the OS. True False

True

The fundamental difference between a switch and a router is that a switch belongs only to its local network and a router belongs to two or more local networks. True False

True

The term firmware refers to programs embedded into hardware devices. This software only changes when a firmware upgrade is performed. True False

True

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

Upset Failure

What is the minimal amount of voltage required to damage an electrical component? 5 volts 10 volts 100 volts 1500 volts

10 volts

Servers that have a NOS installed require less memory, processing power, and storage capacity than clients because servers are called on to handle only light processing loads and requests from multiple clients. True False

False

The Data Link layer attaches a trailer to the end of a packet, and does not include a header. True False

False

The Transmission Control Protocol (TCP) is considered to be a connectionless, or best-effort delivery protocol. True False

False

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

Remote Desktop Protocol (RDP)

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? HTTP SNMP SMTP POP3

SNMP- simple network management protocol

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

The packet will be divided into smaller packets using fragmentation.

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

Devices are daisy-chained together in a single line.

Static electricity is an electrical charge in motion. True False

False

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

Layer 7

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

Physical

In considering the responsibilities of each layer of the OSI model, what statement accurately reflects those of the Presentation layer? - The Presentation layer describes the interface between two applications, each on separate computers. - The Presentation layer is responsible for reformatting, compressing, and/or encrypting data in a way that the application on the receiving end can read. - 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. - The Presentation layer is responsible for transporting Application layer payloads from one application to another.

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

The President

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

-Material Safety Data Sheet (MSDS)

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? Automated Directory Network Services (AD NS) Active Directory Federated Users (AD FU) Active Directory Domain Services (AD DS) Windows Named Resource Services (WN RS)

Active Directory Domain Services (AD DS)

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

Application

What mail protocol is used to send mail messages to a server? POP3 IMAP4 SMTP HTTPS

IMAP4

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

IP address

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

They centralize user account logins.

The TCP and UDP protocols both exist at what layer of the OSI model? Application Presentation Transport Network

Transport

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

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? fire extinction agent fire suppression agent extinguishing medium eliminating factor

fire suppression agent

The Data Link Layer utilizes what name for its protocol data unit (PDU)? packet data bit frame

frame