CompTIA A+ Practice
When configuring a network, what is the rule of thumb on the maximum number of computers you should have in a peer-to-peer network?
10
How many pins are used in HDMI Type A and Type B connectors?
19 and 29 pins
IPv6 addresses intended for Internet use will always begin with what?
2000::
What is the capacity of a single layer DVD R optical media?
4.7 GB
What type of connector does a Mini PCIe card have?
52 pin
What is the data throughput provided by one ISDN bearer channel?
64 Kbps
How many devices can communicate with a master Bluetooth-enabled device in one piconet?
7
What are the various standards for SODIMM?
72 and 144 pin
What is the maximum data throughput of FireWire 800 port?
800 Mbps
You work as a network administrator for uCertify Inc., where the current location of APs allows for total coverage of WiFi throughout the office. You've been asked to replace all the APs in the office building for providing high speed. Which of the following IEEE 802.11 standards will you use to accomplish the task?
802.11ac
Which of the following 802.11x standards provides data transmission speeds up to 54 Mbps and is backward compatible with a slower technology?
802.11g
Your laptop has 1 GB of installed memory and uses shared video memory. If the video card is using 128 MB, how much is left for the rest of the system?
896 mb
What are the specific components required in building gaming PCs to support the demands of gaming software?
A high-end video/specialized GPU unit, High-end cooling such as a water cooling system, Real-time video and audio input/output capabilities
The most recognizable aspect of subnetting is the subnet mask. Adding the subnet mask, or netmask, gives you all the information you need to calculate network and host portions of the address with ease. Which of the following statements bestdefines subnet masks?
A subnet mask is mandatory for systems to communicate across subnetworks.
Which of the following manages data flow between the computer's operating system and attached devices?
BIOS
Which of the following features are incorporated in USB 3.0 technology?
Backward compatibility with USB 2.0 and 1.1, Two undirectionl data paths, Enhanced power efficiency
Andrew configures a hard disk drive and a serial port on his computer's BIOS. Where does the BIOS save this information?
CMOS
You work as IT technician for Happy World Inc. A user complains that his computer automatically reboots after a short period of time. Which of the following computer components will you change to perform preventive maintenance on the computer?
CPU Cooling fan
Which of the following allows for reducing the operating frequency of the CPU during times of less demand or during battery operation?
CPU Throttling
Which two components need to support hardware-based virtualization?
CPU, BIOS
Your customer has an integrated video card, but wants to replace it with a more advanced video card. What should you do?
Check the BIOS for a setting to disable the integrated board and then install a new video card.
You've blocked port 110 on your firewall. Based on this action, which of the following may be true?
Clients on your network will not be able to retrieve e-mail unless their e-mail client supports IMAP4.
Which of the following is not a part of a laptop screen assembly?
DC Jack
Which of the following is not a physical memory format used in desktop computer systems?
DRAM
Which of the following is the most likely cause of interference in mouse pointer movement?
Dirty mouse roller or track ball
Which of the following provides a full range of ports and often a full-sized keyboard and monitor for laptop computers?
Docking station
Which of the following types of printer supports continuous-feed paper?
Dot-matrix
Which of the following are the advantages of SATA over PATA?
Faster, more efficient data transfer rate, provides easy cable management
Which of the following is configured to stop suspicious or unsolicited incoming traffic, but allow incoming traffic sent as a response to requests from internal hosts?
Firewall
You work in a company that accesses the Internet frequently. This makes the company's network vulnerable to attacks. You want to protect your company's network from external attacks. Which of the following will you use to accomplish the task?
Firewall
Which of the following devices is mainly intended to provide 24/7 diagnostic and often come with an OHRM?
Fitness Monitor
Which of the following parts of a laser printer should users avoid touching because of its high temperature
Fuser
You work in a company that accesses the Internet frequently. This makes the company's network vulnerable to attacks. You want to protect your company's network from external attacks. Which of the following will you use to accomplish the task?
Gateway
Which of the following interfaces allows audio to be sent out over the same cabling infrastructure as video?
HDMI
Which of the following uses digital signals and provides an interface between any audio/video source and an audio and/or video monitor over a single cable?
HDMI
Which of the following devices are used by microprocessors to prevent it from overheating?
Heat sink, fan
Which benefits of a USB connection make it the most popular choice for printers?
Higher transfer rate than a parallel connection, automatically recognizes new devices, it has a higher transfer rate than a serial connection
Which custom configuration is most likely to include a RAID array?
Home server pc
________ components are those components that you can add or remove without turning the computer off.
Hot-swappable
Which of the following is the IEEE standard for Fast Ethernet?
IEEE 802.3U
You work as technician for uCertify Inc. The company has a Windows based network. All client computers run Windows 8. You install a printer on one of the client computers and share it with other users. A user complains that when he prints to the new printer, he gets several pages of garbage printing. You send a test print and find that junk characters are printing on the paper. Which of the following is the most likely cause?
Incorrect driver
Minsuh has purchased an Inkjet printer with a USB interface. She connects the printer to a computer on which she has administrative permissions. When she connects the printer, the computer detects a new device, but the printer is not functioning. What will Minsuh do to resolve the issue?
Install the printer driver before connecting the printer to the USB port.
Which LCD component is responsible for providing the right kind of power to the display?
Inverter
What is the function of the laser in a laser printer?
It creates an image of the page on the drum.
Which of the following statements about a riser card is true?
It is used to extend slots for expansion cards.
Which of the following is not applied as a preventive maintenance act for display devices of computers?
Keeping them defragmented
Which of the following are 4G technologies?
LTE, WiMAX
Which of the following is the unit of measurement for visible light being emitted from a light source?
Lumen
While assembling a system for CAD/CAM operations, which of the following are the most important components?
Max ram, powerful video/graphic card, powerful processor
Which of the following bus types handles traffic between the CPU, the chipset, and RAM?
Memory Bus
Which of the following cards provides the interface necessary for remote communications over phone or data lines that have been provided by a cable or Internet service provider?
Modem Card
The _________ is the measurement of the number of pixels an LCD monitor can display without the image appearing distorted.
Native Resolution
You work as network administrator for Infonet Inc. The company uses Wired Equivalent Privacy (WEP) for wireless security. Who among the following can authenticate from the access point of the network?
Only users with the correct WEP key
After SATA was introduced, what was the retroactive term used for the original ATA specification?
PATA
On which memory modules would you find DDR400 chips?
PC3200
You are working with an older laser printer. Customers are complaining of printer problems. Upon investigation, you notice that the printer has worn pickup rollers. What problem could this cause?
Paper jams
Which of the following layers of the OSI model describes how the data gets transmitted over a communication medium?
Physical
Which layer of the OSI model consists of bit-level data streams and regulates their transmission over a cable or wireless medium?
Physical Layer
You work as network administrator for uCertify Inc. You want to check whether the website "ucertify.com" is reachable or not. Execute the appropriate command to accomplish the task.
Ping ucertify.com
You work as IT technician for uCertify Inc. You have been reported by a customer that his computer was fine until yesterday but he heard a pop noise and the computer stopped working in the morning. Which of the following components will you test first?
Power Supply
Which layer translates the Application layer data into an intermediate form that both client and server can process?
Presentation
Which of the following statements are true of the DHCP protocol?
Prevents two computers from being configured with the same IP address accidentally, autoconfiguration protocol
Jennifer, a user, has a Windows 8 based computer. She needs to print a document but the printer does not print it. She had just printed other documents successfully minutes before. What is the most likely cause of this problem?
Print pooler is hung
: John works as a database administrator for TechWorld Inc. The company has a SQL Server 2008 R2 computer, which hosts a number of databases. Management instructs John to provide a RAID solution that have the following: Better fault tolerance, Better input/output performance, highest read and write performance. Which Raid level is most appropriate?
RAID 10
Which of the following requirements need to be considered when building a home server PC?
RAID array, gigabit NIC, media streaming capability
Which of the following specifies how many times in one second the image on the screen can be completely redrawn?
Refresh rate
You work as remote support technician for Dreams Unlimited Inc. A user named Sofia calls you and informs that she has just installed a new print cartridge on her ink-jet printer. She complains that when she tries to print a test page, it does not print. What will you suggest her to resolve the issue?
Reinstall ink cartridge
Which of the following networking devices can send packets to the correct local area network segment to take them to their destination?
Router
Which of the following are removable storage devices/media?
SD Card, CD-ROM, USB pen drive
You're creating a network for an office. You need to connect two office buildings that are approximately 900 meters apart. You have been asked to provide a fast network backbone. Which of the following types of cable will you choose to connect those buildings?
SMF
Which of the following protocols can be used by a client to send email to an email server?
SMTP
Which of the following are laptop memory form factor standards?
SODIMM
Which of the following is a security mechanism used by HTTPS to encrypt web traffic between a web client and server?
SSL
Which of the following connectors are used with fiber-optic cables?
ST and SC
Which of the following can be used as a physical authentication token for accessing computers, rooms, or buildings?
Smart card
Which controls input/output functions, the system clock, drives and buses, advanced power management (APM), and various other devices?
Southbridge
In comparison to traditional hard disk drives (HDDs), which of the following are not available in a solid-state drive (SSD)?
Spinning disk, moveable read/write heads
You work as support technician for Tech Perfect Inc. The company has a TCP/IP-based network. Sofia, a sales manager, calls you to inform that her laser printer is not printing anything at all. Sofia is quite tech-savvy and tells you the troubleshooting steps she has taken on the issue. When you send her a test print job, she gets irritated and tells you that she has already done this. How will you respond?
Tell her that you are trying to follow a methodical troubleshooting plan.
Andrew, a network administrator, wants to enable users at one site to simulate a session on a remote host as if the terminal were directly attached. Which of the following protocols will he use?
Telnet
You have a SATA hard drive that is currently connected to the motherboard integrated controller card. You're moving to RAID 1 (mirrored configuration) using a RAID controller card. Which of the following is necessary for you to use this drive, and add a new one for optimal performance?
The new drive must be of the same model and should have the same capacity.
Which of the following is true of thin clients?
They require fewer components than standard clients.
What is the term for the concentric magnetic rings on the surface of a disk platter?
Track
Which of the following layers of the OSI model controls the data flow and troubleshoots any problems with transmitting or receiving datagrams?
Transport
Which of the following are the components of the SSH protocol?
Transport Layer, User Authentication, Connection
Which of the following acronyms represents the extensible technology that supersedes and improves upon the role that the BIOS plays in traditional systems?
UEFI
Which of the following are the differences between solid state drive (SSD) and hard disk drive (HDD) storage devices?
Unlike a HDD, an SSD has no moving parts., SSD is often more reliable than HDD.
Which of the following graphics interface connectors produces an analog signal?
VGA
You work as an IT technician for uCertify Inc. You want to add a company video from a video cassette to the website of the company. Which of the following devices will you use to complete this task?
Video Capture Card
Which of the following video display technologies can support a resolution of 7680 × 4800 pixels?
WHUXGA
Which of the following statements are true of a docking station?
allows laptop to connect to desktop i/o devices and it is a specialized case
Which of the following network troubleshooting utilities of Linux is used to display the local system's network interface information, including IP address, hostname, and subnet mask?
ifconfig
What are the specific requirements for the virtualization workstation?
max ram, fast network, max CPU
Which of the following are the important hardware components that needs to be addressed in CAD/CAM workstations?
multicore processor, high-end video/graphics card w/ integrated GPU, Max ram
A network administrator is facing DNS resolution problems. Which of the following utilities will he use to diagnose the problem?
nslookup
You have a customer who cannot seem to resolve host names to IP addresses. What would be one of your firststeps to try to diagnose this problem?
nslookup
Minsuh has a computer that is connected to an Inkjet printer. The printer driver is installed on the computer. Minsuh has checked the printer by printing some documents. After a week, she tries to print some documents, but she is unable to do so. Which of the following are the most likely causes of the issue?
paper tray out of paper, data cable that connects printer to computer is loose.
Which of the following utilities is used to verify the existence of a host in a network?
ping
You work as technician for Troubleshooters Inc. A user named David calls you and complains that his laser printer has recently started printing vertical black lines on the documents it prints. You verify that the printer uses the EP print process. What is the most likely cause?
scratch on the ep drum
Which of the following statements are true of the ATX motherboard?
supports soft power off, expansion slots are located at right angles to the processor and memory, power supply uses a single 20 pin connector
What peripheral port type is expandable using a hub, operates at 1.5 MBps, and is used to connect various devices (from printers to cameras) to PCs?
usb 1.1
