Pretest
The failure rate in a certain brand of network interface card has been determined to be 15%. How many cards could be expected to fail in a company that has 80 of the cards installed?
12
It is anticipated that a company-wide system upgrade will take approximately 60 person-hours to complete. How long will it take five technicians that each work the same amount of time to perform the refresh?
12 hours
What is the default subnet mask for the IP address 172.16.4.22?
255.255.0.0
Several messages sent to the network administrator are reporting that access to a secure server using HTTPS is failing. After checking recent updates to the company firewall, the administrator learns that the firewall is blocking HTTPS. Which port should be opened to solve the problem?
443
Which is the correct procedure to put out a fire with a fire extinguisher after the pin is pulled?
Aim at the base of the flame, squeeze the lever, and sweep from side to side.
A user is looking for a wireless headphone for listening to songs stored on a smartphone. What wireless technology would the headphone use?
Bluetooth
Which network protocol is used to automatically assign an IP address to a computer on a network?
DHCP
A network administrator has finished migrating from a peer-to-peer network to a new client-server network configuration. What are two advantages of the new configuration? (Choose two.)
Data is more secure in the event of hardware failures. and Data resources and access are centrally controlled
A customer connects a smartphone to a cloud service operated by the service provider. What can the cloud service provide to the customer?
Data storage
A technician has installed a new sound card in a PC but it is not operating correctly. Where should the technician look to investigate driver problems?
Device Manager
In the event that a mobile device is lost or stolen, which two procedures can help protect private information that is stored on the device? (Choose two.)
Encrypt the storage media. and Enable the device access password.
Which measure can help control RFI effects on wireless networks?
Ensure the wireless network is on a different frequency than the offending source.
Which key or key sequence pressed during the boot process will allow a user to start a Windows PC using the last known good configuration?
F8
Which type of interface should a customer choose if connecting a single cable from a Microsoft Windows computer to output both audio and video to a high definition television?
HDMI
What password would be considered a strong password?
Il0veMyj0b
A computer is assigned an IP address of 169.254.33.16. What can be said about the computer, based on the assigned address?
It cannot communicate outside its own network.
A technician wants to allow users to backup and restore all the files on their computers, but does not want the users to be able to make changes to the system. How should the technician give users this functionality?
Make the users members of a group called Backup Operators.
What characterizes a DDoS attack?
Many hosts participate in a coordinated attack.
Which component would be located inside the computer case?
RAM
What is an advantage of purchasing a tablet rather than a laptop computer?
Reduced size/weight
What would be the most environmentally friendly procedure to consider in the design of a server room?
Share one monitor with several servers.
A technician notices that an application is not responding to commands and that the computer seems to respond slowly when applications are opened. What is the best administrative tool to force the release of system resources from the unresponsive application?
Task Manager
Which problem could occur if a screwdriver is used to pry the top off of a computer case?
The screwdriver could slip and cause harm to the technician or to nearby individuals.
Refer to the exhibit. What caused the pictured menu to appear on the user's screen?
The user right-clicked a desktop icon.
Refer to the exhibit. Why is Undo in black, while the other items are in gray?
There is no text to cut, copy, paste, or delete, so these operations are unavailable.
Which two general precautions should be followed when using hand tools? (Choose two.)
Use tools that are the right size and right type. and Keep cutting tools sharp and in good condition.
Refer to the exhibit. What does the symbol shown represent?
a folder which is a collection of subfolders and files
A student purchased a new WiFi enabled tablet computer. What is required to connect this device to the Internet?
a wireless LAN
How can a section of text in a Notepad document be highlighted to be copied to another location within the document?
click at the start of the text, drag the pointer to the end of the text, then release the button
A classmate is creating an imaginary language. Here are some words the classmate has created: stalopheah means good day stalopjink means goodness drahplunk means light house flinsjink means happiness plunkgrecki means house fly What would your classmate use to mean daylight ?
heahdrah
Which two operating systems are used in smartphones? (Choose two.)
iOS and Andriod
Which precaution should be taken before any electronic component is removed from a computer system?
make sure that the computer is unplugged
What is a possible hardware upgrade that can be used to add more storage space to a modern smartphone?
microSD
Which two devices are output devices? (Choose two.)
monitor and printer
Which hardware component must be installed in a PC to provide network connectivity?
network interface
What can be tested with a digital multimeter?
quality of electricity in computer components
What type of device provides power to a computer and allows it to be safely shut down in the event of a power loss?
uninterruptible power supply
When should a technician avoid wearing an antistatic wrist strap?
when replacing a power supply unit
Which action can reduce the risk of ESD damage when computer equipment is being worked on?
working on a grounded antistatic mat
