Module 1 cybersys tech review

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?

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

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

Devices are daisy-chained together in a single line.

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.

False

Static electricity is an electrical charge in motion.

False

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

False

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

False

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

False

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

Material Safety Data Sheet (MSDS)

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

SMTP

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?

SNMP

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 divided into smaller packets using fragmentation.

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

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

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

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

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

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

Transport

An open electrical circuit as a result of a failed circuit breaker is considered to be what type of failure system?

fail-close

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

fail-open