Question 1

A corporation maintains an active social media presence by constantly uploading audio and video. The corporation also regularly hosts video conferences, but attendees are reporting buffering during their telecast. Which of the following should the IT department do to improve the ability to attend video conferences without interruption?

Accepted Answer

A)  Enable QoS on network traffic, prioritizing telecast traffic over uploads. 
B)  Upgrade video conference room equipment. 
C)  Create a VLAN for all employees updating social media. 
D)  Adjust the network intrusion device to allow video to flow without filtering.

Question 2

A user's laptop is not connecting to the company's file server. The user provides the following network information from the laptop:  Which of the following is MOST likely causing the issue?

Accepted Answer

A)  DHCP error 
B)  IPv4 conflict 
C)  No WiFi connection 
D)  MAC filtering

Question 3

A customer wants to purchase a new home computer. The machine will mainly be used for internal browsing and streaming video, except on weekends when the customers' son will use it to play games with friends. Which of the following should the technician focus on to meet these requirements?

Accepted Answer

A)  80mm case fans 
B)  Four-core processor 
C)  RAID 5 array 
D)  16GB DDR2 memory 
E)  Dual monitors
F) Encrypted hard drive

Question 4

A technician needs to routinely run scripting commands in Linux but does not want to walk over to the server room every time to perform the task. The technician also travels between buildings and has a Windows 10 laptop with 4GB of memory and a fully partitioned 500GB hard drive. Which of the following steps should the technician take to resolve this issue? (Choose two.)

Accepted Answer

A)  Increase the memory to 8GB. 
B)  Install a Linux guest VM. 
C)  Add another 500GB hard drive. 
D)  Create a Linux LiveBoot CD. 
E)  Repartition the hard drive.
F) Install Linux on a new ext3 partition.

Question 5

Which of the following is a common use for NAT?

Accepted Answer

A)  Automatically assigning network addresses 
B)  Hiding the network portion of an IPv4 address 
C)  Connecting multiple devices through a single public IP address 
D)  Resolving alphanumeric names to addresses

Question 6

A technician wants to block remote logins to a server. Which of the following ports should be blocked?

Accepted Answer

A)  21 
B)  53 
C)  80 
D)  443

Question 7

A user is attempting to set up a new Bluetooth keyboard but is unable to pair the device. The user is able to see the device in the Bluetooth configuration tool. Which of the following is the MOST likely cause of the failure?

Accepted Answer

A)  Bluetooth is disabled. 
B)  A PIN code is required. 
C)  There are different Bluetooth versions. 
D)  The device is not compatible.

Question 8

A technician is configuring a student laptop, and the network administrator requires it to be statically configured. The technician successfully pings the servers by IP but cannot ping by UNC. Which of the following is MOST likely the issue?

Accepted Answer

A)  DHCP 
B)  DNS 
C)  Gateway 
D)  IP address

Question 9

A technician is connecting an LCD projector to a laptop. The image displayed by the projector does not align properly with the top corners. The laptop screen is black, preventing the technician from changing the resolution settings on the computer. Which of the following is MOST likely affecting the projector's display?

Accepted Answer

A)  Distorted geometry 
B)  No image displayed 
C)  VGA mode function 
D)  Disconnected cable

Question 10

A user is unable to access websites and has reported connectivity issues with pop-ups on the screen. A technician removes malware, and then is able to ping the router and access the websites. Which of the following NEXT steps should the technician perform in troubleshooting this issue? (Choose two.)

Accepted Answer

A)  Document findings, actions, and outcomes. 
B)  Reboot the device to verify the fix. 
C)  Reconnect the device to the network. 
D)  Verify the settings in IPConfig. 
E)  Research the problem based on symptoms.
F) Run a virus scan.

Question 11

A customer wants to install a new computer in a room that does not have any network drops. The customer authorizes a technician to install a new network jack in the room. Which of the following tools should the technician use to finish installing the new network jack?

Accepted Answer

A)  Multimeter 
B)  Loopback plug 
C)  Crimper 
D)  Punchdown tool

Question 12

Which of the following connector types is used to terminate household telephone cabling?

Accepted Answer

A)  RG-6 
B)  RJ-11 
C)  RJ-45 
D)  RG-59

Question 13

The performance of a user's PC has been degrading over time. The PC currently emits a strong odor and turns off after 15 minutes of use. A technician visually inspects the PC and notices it has distended capacitors. Which of the following should the technician do to BEST remediate the issue?

Accepted Answer

A)  Replace the hard drive. 
B)  Replace the motherboard. 
C)  Replace the CPU. 
D)  Replace the memory.

Question 14

Which of the following interfaces uses DB9 and DB25 connectors?

Accepted Answer

A)  RS-232 
B)  USB-C 
C)  eSATA 
D)  USB

Question 15

A user reports being unable to browse the Internet. A technician believes the cause of the issue is related to DNS. Which of the following should the technician perform NEXT?

Accepted Answer

A)  Test the theory by attempting to browse to a website's known IP address. 
B)  Implement preventive measures by manually assigning a DNS server to the PC. 
C)  Identify the problem by running the command ipconfig /flushdns . Identify the problem by running the command ipconfig /flushdns . 
D)  Document the findings in the organization's local knowledge base.

Question 16

Which of the following is considered a connectionless protocol?

Accepted Answer

A)  UDP 
B)  TCP 
C)  Telnet 
D)  DNS

Question 17

A user is building a VM that will house a database that stores sensitive information. The database will also include a large number of CAD drawings. Which of the following is MOST important when building the VM?

Accepted Answer

A)  Number of CPU cores 
B)  VM version 
C)  Disk space 
D)  RAM usage

Question 18

A customer contacts the help desk stating a laptop does not remain charged for more than 30 minutes and will not charge more than 15%. Which of the following components are the MOST likely causes the issue? (Choose three.)

Accepted Answer

A)  LCD power inverter 
B)  AC adapter 
C)  Battery 
D)  Processor 
E)  VGA card
F) Motherboard
G) Backlit keyboard
H) Wireless antenna

Question 19

A technician is buying a laptop that will host three VMs running at the same time with the current configuration. The technician believes there might be a need to run several additional VMs in the near future. Which of the following resources would be the MOST important to upgrade to allow for the additional VMs?

Accepted Answer

A)  CPU 
B)  SSD 
C)  NIC 
D)  RAM

Question 20

A technician needs to select and install network cabling in an office ceiling. The technician was told the space above the ceiling is part of the air conditioning return system. Which of the following cable features is MOST likely to be a safety requirement?

Accepted Answer

A)  Plenum insulation 
B)  Category number 
C)  Transmission limitations 
D)  Shielded twisted pair

Exam 1: CompTIA A+ Certification Exam: Core 1

A user's laptop is not connecting to the company's file server. The user provides the following network information from the laptop: Which of the following is MOST likely causing the issue?