A mobile operating system is which of the following?

This is the mechanism used to make sure that client application data being sent is received by the proper server application in a client-server network.

port number

To make sure the client application data is received by the right server application, port numbers are used. The CompTIA A+ exam would need you to understand several of the most commonly used and well-understand port numbers, such as Telnet, SSH, and SMTP.

To change passwords, which command in Linux can be used?

passwd

The passwd command is used to change passwords in Linux. To use this command, type passwd followed by the username whose password has to be changed. If no username is given, the current user's password will be changed. The command pwd is likewise a Linux command, except instead of changing the password, it displays the current working directory.

The statement: "Bitlocker is available for Microsoft Windows while EFS is a comparable disk encryption solution for Linux and Mac" is true or false

False

Microsoft Windows operating systems support Bitlocker and Encrypting File System (EFS), respectively. Bitlocker encrypts the whole disk, while EFS encrypts individual files.

What command-line utility would he use to verify the integrity of the drive if a user is constantly receiving error messages relating to the hard drive?

chkdsk

chkdsk, which is run from the system command prompt, is the system tool used to verify disk integrity. If no parameters are specified, it will simply display the disk status; if the /r option is specified, chkdsk will locate bad sectors and attempt to recover lost data.

The network service that converts domain names into IP addresses is which of the following?

DNS

Such as www.abc.com, DNS (domain name server) transforms domain names into public IP addresses such as 199.181.132.250

A fresh installation of Windows 10 onto many computers can use which option in the following to speed up?

Unattended installation

Windows 10 will be installed without the normal user interface and set up a wizard using an unattended version. This is accomplished by installing a new installer that has a response file that is used to customize the installation without asking the user for answers.

What steps can a network administrator take to simplify the process of configuring network interface cards if a company with a very small local area network has grown to the point where statically assigning IP addresses and other NIC parameters have become impossible to manage?

Incorporate a DHCP Server into the network.

When a computer boots up, a DHCP (Dynamic Host Configuration Protocol) server automatically configures the parameters required by the network interface card. It manages IP address allocation from a central point.

"All Linux applications can be run on macOS" is true or false

False

An application designed for one operating system may not always operate on another. It will differ from application to application, and developers must enable support for each operating system. Because Linux and macOS are so similar, it is typical for applications to be supported on both, though this is not automatic or guaranteed.

What protocol would you use that would allow you to connect to remote systems to assist users in the native OS interface if you are responsible for supporting numerous remote systems on the corporate network as a system administrator?

RDP

RDP (Remote Desktop Protocol) enables people to remotely log in to computers to assist remote users. Once connected, you will see the identical interface that a user would see on their end. While Telnet and SSH allow you to connect to remote computers, they only connect you to a command line or shell, not the typical user interface.

An edition of Windows 8 is NOT which of the following?

Windows 8 Starter

Windows 8 (Core), Windows 8 Pro, Windows 8 Enterprise and Windows 8 RT is 4 primary editions. Windows 8 (Core) is frequently promoted as just Windows 8, however, to prevent misunderstanding, many technical documents and other sources refer to it as Core.

Which of the following issues could account for the situation that a help desk staff is talking to a user who is able to print to the network printer, but cannot access the Internet?

The default gateway is down.

It would not affect the local area network so he would be able to print if the default gateway goes down. But users would not be able to access the Internet if the default gateway went down.

What is most likely the issue:
A coworker requests your assistance in solving a problem. They installed a new copy of Windows 10 Professional and discovered that the operating system only shows 4GB of RAM when the PC has 16GB installed?

32-bit version of the OS was used

Many operating systems are available in 32-bit and 64-bit flavors. Though they are still available, 32-bit versions are becoming less common 32-bit operating systems can only handle memory up to 4GB in size.

What utility does a customer use to eliminate any temporary files from her hard drive when she discovers that her hard drive is starting to run out of space and decides to replace it with a larger drive before then?

Disk cleanup

To perform Disk Cleanup, from Start, enter Disk Cleanup. The Disk Cleanup utility is used to delete temporary files from a hard drive.

What port number would you open to allowing SSH access if you have a firewall protecting a network?

22

Port number 22 is used by SSH (Secure Shell)

To terminate a process, which Linux command can be used?

kill

The kill command is the built-in command in Linux for terminating a process. The kill command can be used to kill a process by its name or PID.

A mobile operating system is which of the following?

Leave a Reply Cancel reply