Practice Q 220-1101

What is the max data signaling rate for IEEE 802.11a

54 mbps

What is the max data signaling rate for IEEE 802.11b

11 mbps

What is the max data signaling rate for IEEE 802.11ac

6.933 Gbps

Which of the following antenna types would be the least suitable for long range point to point bridging link?

Omnidirectional Antenna

What does DKIM do?

Verifies that the contents of the email were not altered in transit and that it was really sent by your domain.

What does DMARC do?

builds on SPF and DKIM to tell mail servers what to do when an email fails those checks

What does SPF do?

Helps prevent spammers from sending emails on behalf of your domain.

What allows to determine which network segment an IP address belongs to?

Subnet mask

Networked device providing an entry point into another network or the Internet?

Default Gateaway

IPv4 addresses are expressed with the use of:

Decimal numbers

An IPv6 address consists of how many bits?

128 bit

A dedicated local network consisting of devices providing data access is known as:

SAN

A type of diagnostic tool used for measuring the strength of a wireless signal is called:

WiFi analyzer

Which of the following would be of help in determining the optimal placement of a WAP?

WiFi analyzer

Which of the tools listed below would be used for troubleshooting incorrect pinouts on a cable?

Cable Tester

While troubleshooting problems with a Network Interface Card (NIC), connector pins on the NIC's port can be tested with the use of:

Loopback plug

Which of the following metrics might be of help in diagnosing the declining performance of a storage device?

IOPS

Which state of the HDD LED light typically indicates the drive’s normal operation?

Intermittent flashing

Hardware RAID Level 10 requires a minimum of:

4 drives

What is the maximum allowable number of devices that can be attached to a parallel SCSI bus?

16 devices

Which of the following requires termination?

SCSI chain

Which of the answers listed below refers to a method for identifying logical partitions on a SCSI drive?

LUN

Which of the following would be the BEST way to remove toner and paper dust from the inside of a laser printer?

Wipe the inside with a damp cloth

A user’s desktop computer does not start in the morning when the power button is pressed. A technician notices that the screen remains dark, but fans are spinning inside of the computer case. No messages are displayed and no beeps are heard. Which of the following would be the MOST likely reason for this issue?

Bad power supply

A system administrator needs to upgrade the hard drives in a RAID array. Which of the following would be the BEST measurement of read and write times on the new hard drives?

IOPS

A network administrator is pinging a site on the Internet and receives these results:

C:\Users\professor>ping 9.9.9.9

Pinging 9.9.9.9 with 32 bytes of data:

Reply from 9.9.9.9: bytes=32 time=618ms TTL=128

Reply from 9.9.9.9: bytes=32 time=816ms TTL=128

Reply from 9.9.9.9: bytes=32 time=627ms TTL=128

Reply from 9.9.9.9: bytes=32 time=727ms TTL=128

Ping statistics for 9.9.9.9:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 618ms, Maximum = 816ms, Average = 697ms

Which of the following would BEST describe these state of this network connection?

Excessive latency

Users in the marketing department are reporting that one network printer is not working. There are many print jobs in the queue, but none of the jobs are printing. A test print from the printer's front panel does not print any pages. What is the MOST likely reason for this printing issue?

Printer hardware has falied

A company would like to advertise a list of email servers authorized to send messages on their behalf. Which of the following would be the BEST way to provide this information?

SPF record

A system administrator has just received a laptop previously sent out for repair. However, after powering on the computer, the laptop no longer responds to the stylus. Which of the following is the MOST likely reason for this issue?

The digitizer is faulty

What type of power supply can operate across countries using different voltages?

Auto switching

An organization has recently implemented a browser-based email system that requires no additional software on the user devices. Which of the following would describe this type of application?

SaaS

What voltages would be commonly found on a motherboard's power supply connector?

12 V DC, 5 V DC, 3.3 V DC

Which of these wireless standards was the first to introduce 54 Mbit/sec throughput on the 2.4 GHz band?

802.11g

A user has submitted a job to a network printer, but the printer will not begin to print until the user has typed their PIN on the printer console. Which of the following would BEST describe this scenario?

Secured prints

What cloud-based service provides hardware, but still requires the user to setup, configure, and manage the operating system and applications?

Iaas

In which of the following would a cable with a DB-9 connector be used?

Configuring a router

A company is using a cloud-based service that provides a hardware platform and no additional software. Which of these would BEST describe this purchase?

Iaas

Which of these services would be associated with a Windows file transfer?

SMB

A user in the marketing department needs an LCD with the best possible color representation. Which of the following would be the BEST choice for this requirement?

IPS

A technician is installing a DSL modem in a data center. Which of the following connectors would be used to connect the DSL modem to the Internet provider line?

RJ11

A system administrator made some BIOS changes to a desktop computer running Windows 10, and now this message appears when starting the computer:

“This drive can only boot in UEFI mode.”

Which of the following would be the BEST next troubleshooting step?

Enable Secure Boot

Which of the following can be used to forward traffic based on a destination MAC address?

Unmanaged Switch

A workstation has been assigned an APIPA address. Which of the following would be the MOST likely reason for this assignment?

The DHCP server is down

A system administrator needs a secure method of storing encryption keys. Which of the following would be the BEST choice for this requirement?

HSM

A user’s tablet has stopped responding to any type of finger input on the screen. The clock and other tablet functions appear to be working. Which of the following would be the BEST way to correct this issue?

Restart the tablet

A company needs to purchase a new printer for an open work area. The primary requirement of this printer is to be as quiet as possible. Which of these printer types would be the best fit for this requirement?

Thermal

A network administrator is deploying a firewall to the cloud using an API to configure the device. Which of the following would BEST describe this deployment type?

SDN

An engineering firm is upgrading their storage array to include additional drive space for documents and designs. The primary goal is to provide high performance and uptime, even if two drives were to fail. Which of the following would be the BEST choice for this firm?

RAID 10

Which of these connection types use coax to provide Internet data, voice, and video overt the same wire?

Cable broadband

A user in the manufacturing department reports that every page printed from the central networked laser printer has a single black line extending from the top of the page to the bottom. Which of the following is the MOST likely cause of this issue?

The photosensitive drum is damaged

Which wireless standard can operate in the 5 GHz band and provides approximately 10Gbit/sec of throughput?

802.11ax

A user would like to access email from their Windows 10 laptop using a smartphone’s Internet connection. Which of these technologies needs to be enabled on the laptop?

802.11

A user has just connected to a new wireless network, but they cannot view any Internet web sites. Their network configuration shows the IP address as 169.254.228.109, the subnet mask is 255.255.0.0, and they have not been assigned a default gateway. Which of these is the MOST likely cause of this issue?

The DHCP server is down

What type of device connects multiple computers to the network, but becomes less efficient as network traffic increases?

Hub

When a user starts their computer, the screen remains blank and the computer beeps twice. Which of these would be the MOST likely cause of this issue?

The memory is faulty

Which of the following would be MOST likely found on an optical disc?

Document archive

A user has powered on their computer and received the message “Operating system not found.” A check of the system shows that the SATA drive cables are properly connected. Which of the following would be the NEXT best troubleshooting step?

Check for removable drives

A system administrator has been assigned the task of installing an operating system, application, and data onto a cloud-based server. Which of these best describes this scenario?

Infrastructure as a Service

A systems administrator has added a new video adapter to a desktop computer, installed the latest video driver, and rebooted the system.When the system starts, it shows a Windows Stop Error before it reaches the login prompt. Which of the following would be the BEST next troubleshooting step?

Press F8 during startup and choose “Boot from last known working configuration”

A system administrator is configuring a lab computer that will run five server VM’s at the same time. Which of the following hardware resources will be the MOST important for this configuration?

Storage space

Which of the following would provide segmentation of broadcast domains on the same physical switch?

VLAN

Which of these devices would be used to configure an 802.1Q trunk?

Managed switch

A network administrator needs to connect an Ethernet link between two buildings located across the parking lot from each other. The total distance between the buildings is approximately 400 meters. Which of the following technologies would be the BEST choice for this installation?

Fiber

Which of these cloud computing architectures would BEST describe several organizations sharing the same resources?

Community

The cooling fan controller in a server is failing. The server administrator has tested possible reasons for the failures and has created a plan for correcting the issue. Which of the following would be the best NEXT troubleshooting step?

Present the plan to the change control team

A network administrator has installed a fifty meter network connection from one side of the building to the other, and now he would like to make sure that the punch-downs and crimps are connected to the correct pins on each side. Which of these tools would be the best way to confirm the wiring map?

Cable tester

A network engineer is installing a cable modem at a remote site. Which of these connectors would commonly be found on a cable modem?

F-connector

A technician has just upgraded the memory on a desktop computer. After the computer runs for a few minutes, the system locks up completely and does not respond to keyboard or mouse input. After rebooting, no error messages are found in Event Viewer. Which of the following would be the BEST next troubleshooting step?

Run hardware diagnostics

A user in the accounting department had a new laptop delivered and installed, but they are reporting that the network throughput seems much slower than the previous computer. Which of the following would be the most likely cause of these slow transfer speeds?

Duplex mismatch

What type of network connection is commonly used by DSL?

Twisted pair copper

Which of the following would be MOST commonly associated with the management interface on a switch?

DB-9

A user would like to ensure all apps on their smartphone use 802.11 networking instead of the cellular network. Which of the following would provide this functionality?

Enable data caps

A network administrator is installing an Ethernet cable containing gel and a ground wire. Which of the following would MOST likely describe this cable?

Direct burial

A web server administrator has received a notification that disk 1 in a RAID 5 array has failed. Which of the following would be the BEST next step to resolve this drive failure?

Replace disk 1 and rebuild the array

An operating system is transferring unused application data from memory to the local storage drive of the computer. Which of the following would BEST describe this memory technology?

Virtual

A server administrator is building a web server with three hard disk drives. The storage for the server requires the fastest possible access and redundancy is not a primary requirement. Which of the following would be the BEST choice for this server?

RAID 0

A network engineer is troubleshooting the connection of a tablet to a cellular provider’s network. Which of these would BEST describe this network connection?

Long Term Evolution

The mouse on a desktop computer has stopped operating. Which of the following would be the best NEXT troubleshooting step?

View the log files