Ch 3
What carries broadband internet signals?
Coaxial cable
Which of the following is designed to provide a Linux command line interface?
Answer
GCC
GPL
Bash
GIMP
Bash
Most operating systems have a GUI as part of their system. Which of the following BEST describes an operating system's GUI?
The microprocessor's program that starts the system up after the computer is powered on.
The primary component of a computer that retrieves, processes, and executes instructions.
A user-friendly interface that uses icons and visual components to interact with the system.
An important component of a computer that is used to store data and machine code while in use.
A user-friendly interface that uses icons and visual components to interact with the system.
What is a smaller memory card with unique notch positions that is used in laptops and notebook computers?
SODIMM
What command do you use to move from your present directory to another directory?
cd
What is a cable generally used for Ethernet cables and telephone wires?
Unshielded twisted pair (UTP) cable
What is a cable that provides more EMI protection, but is more expensive than UTP cable?
Shielded twisted pair (STP) cable
Ruth has a startup business and limited resources. She wants to save money by using an operating system on her business computers that has no associated fees for installation.
Which of the following operating systems could Ruth install for free?
Answer
macOS
Windows
Chrome OS
Linux
Linux
What is a type of RAM that stores data using four transistors for every bit of data?
SRAM
What is a command that lets you check if a domain / ip is online?
ping
What is a gigabit Ethernet cable with 10 Gbps speeds limited to cable length less than 100 meters?
Category 6a (Cat 6a) cable
A user has called to complain that her computer won't boot. It stops on the system startup screen right after the memory has been tested and displays a 301 keyboard error.
Which of the following troubleshooting steps is the BEST to try first?
Answer
Verify that the latest UEFI firmware updates have been applied.
Download and install the latest keyboard driver from the manufacturer's website.
Verify that no keys are being pressed down during POST.
Install a new keyboard on the computer.
Verify that no keys are being pressed down during POST.
Which of the following vendors offers the largest variety of editions for its operating system?
Answer
Microsoft Windows
Ubuntu
Google Chrome
Apple macOS
Microsoft Windows
What is type of RAM that stores data using a single transistor for every bit of data?
DRAM
What command do you use to delete a directory?
rmdir
What is a connector with 4 connectors, 2 pairs of wires, and a locking tab; used primarily for telephone wiring?
RJ-11 connector
An employee complains that every time they turn their computer off, the computer's time is set to 12:00 p.m., and the date is set back to January 1, 1990.
Which of the following is the MOST likely cause of this anomaly?
Answer
The CMOS chip is failing.
The CMOS settings are not being saved before the computer powers off.
The CMOS chip on the motherboard is loose.
The CMOS battery has failed.
The CMOS battery has failed.
What is normally disabled by default on most Linux servers?
Answer
Embedded Linux
GUI
TUI
IaaS
GUI
What is a graphical tool that lets you view and monitor the windows operating system’s registry and edit if necessary?
Regedit
Command used to update group policy?
gpupdate
What is a type of RAM that stores data using a single transistor for every bit of data?
DRAM
What is the role of the CMOS in a modern computer?
Answer
Coordinates the use of system hardware with the operating system.
Saves information about system devices.
Tests hardware during system startup.
Loads the operating system into memory.
Saves information about system devices.
A macOS user has forgotten the location of an important spreadsheet document.
Which macOS feature could they use to find the spreadsheet?
Answer
Key Chain
Mission Control
Spotlight
Remote Disk
Spotlight
What is the overall design and functionality that help ensure computer components can be interchanged among vendors and generations of technology?
Form factor
A command that is used to locate IP address or DNS(Domain Name System)record.
nslookup