CompTIA A+ Harder Questions

These are unofficial practice questions for the CompTIA A+ Core 1 and 2 exam that can most likely get missed or that some people can find difficult.

You have purchased a new laptop and you noticed that the speakers are not working. You plugged in the headphones, but you can't hear any sound. How should you correct this problem?

a) Update audio device driver

b) Unmute the sound

c) Set speakers as the default audio device

d) Connect an external speaker

a) Update audio device driver

Which device is normally worn on the wrist, and it tracks a user's movements, heart rate and it may be able to track sleep patterns and have a clock and an alarm?

a) Smart glasses

b) Fitness monitor

c) Smartwatch

d) Smart headset

b) Fitness monitor

Which of the following protocols is used by Microsoft Windows to transfer files from one system to another?

a) SMB

b) AFP

c) TFTP

d) DNS

a) SMB

.You work as a system administrator for a company. One of the users is working from home and complains that he is not able to connect to his work machine in the office via RDP. Which port needs to be opened on the firewall to grant him RDP access?

a) 80

b) 3389

c) 443

d) 22

b) 3389

Which of the following cable you would use, If you are going to make a connection from the hub to hub, switch to switch, router to router, the hub to switch, or a computer directly to a router?

a) Regular patch cable

b) Console cable

c) Straight-through cablewrong

d) Crossover cable

d) Crossover cable

DVI-D cable sends both analog and digital. A DVI-I cable, however, is only capable of sending digital signals.

a) True

b) False

b) False

You are replacing a hard drive and noticed a 15-pin connector on the motherboard. What type of drive is needed?

a) Serial ATA

b) IDE

c) USB

d) Flash drive

a) Serial ATA

Which of the following service refers to the use of a complete cloud-based software development environment?

a) Platform as a Service (PaaS)

b) Software as a Service (SaaS)

c) Infrastructure as a service (IaaS)

d) Cloud as a service (CaaS)

a) Platform as a Service (PaaS)

Which type of cloud service handles the task of managing software, its deployment, and it includes the platform and infrastructure as well?

a) PaaS

b) IaaS

c) AWS

d) SaaS

d) SaaS

In RAID 0 the data is striped across both drives to improve performance but does not include any redundancy

a) True

b) False

a) True

Which feature of cloud computing allows computing resources to be automatically allocated in response to demand?

a) On-demand self-service

b) Measured service

c) Rapid elasticity

d) Resource pooling

c) Rapid elasticity

To avoid low RF signal issues, which of the following non-overlapping channels should be used?

a) 1

b) 6

c) 5

d) 11

b) 6

Which of the following protocols is used to encrypt and digitally sign the E-mails?

a) IMAP

b) S/MIME

c) SMTP

d) POP3

b) S/MIME

You work as a system administrator for a company. Few users complain that they are not able to open any website on their Windows 10 machines. You need to make sure their PCs are getting a correct DNS IP. Which of the following command you should use?

a) ipconfig

b) ipconfig /all

c) ipconfig /showall

d) ifconfig

b) ipconfig /all

Telnet: (Select 3 answers)

a) Encrypts network connection

b) Provides username & password authentication

c) Transmits data in an unencrypted form

d) Does not provide authentication

e) Enables remote login and command execution

b, c, e

The SMTP protocol is used for: (Select 2 answers)

a) Sending email messages between mail servers ( Your answer)

b) Name resolution services

c) Serving of web pages

d) Retrieving email messages from mail servers ( Your answer)

e) Sending email messages from a client device ( Your answer)

a, e

Which of the answers listed below refer to IMAP? (Select 2 answers)

a) Offers improved functionality in comparison to POP3

b) Serves the same function as POP3

c) Enables sending email messages from client devices

d) Offers less functions than POP3

e) Enables email exchange between mail servers

a, b

Which of the following answers refers to an API that enables communication between hosts on a LAN?

a) DNS

b) TCP/IP

c) NetBIOS

d) DHCP

c) NetBIOS

The function of the NetBT protocol is to allow NetBIOS services to be used over TCP/IP networks.

a) True

b) False

a) True

LDAP is an example of:

a) Authentication protocol

b) Directory access protocol

c) Address resolution protocol

d) File exchange protocol

b) Directory access protocol

What are the characteristic features of SMB/CIFS? (Select 2 answers)

a) Designed for Linux-based environments

b) Optimized for secure file sharing over the Internet

c) Primarily used in Microsoft Windows environments

d) Intended for voice and multimedia communication over IP networks

e) Used to provide shared access to files, directories, and devices

c, d

Which port enables the FTP data connection for transferring file data?

a) UDP port 20

b) TCP port 20

c) UDP port 21

d) TCP port 21

b) TCP port 20

Which TCP/UDP port is assigned to DNS?

a) Port 53

b) Port 67

c) Port 110

d) Port 389

a) Port 53

Which UDP port is used by a DHCP client to receive responses from a DHCP server?

a) Port 66

b) Port 67

c) Port 68

d) Port 69

c) Port 68

Which of the port numbers listed below are assigned to NetBIOS services? (Select 3 answers)

a) Port 135

b) Port 136

c) Port 137

d) Port 138

e) Port 139

c, d, e

Which of the answers listed below describe the characteristics of the 2.4 GHz frequency range, when compared to higher-frequency bands like 5 GHz and 6 GHz? (Select 3 answers)

a) The longest range (better penetration through obstacles)

b) A wider number of available channels with less overlap

c) Higher susceptibility to interference due to device congestion

d) The lowest number of non-overlapping channels

e) Shorter range (weaker penetration through obstacles)

f) Less interference due to fewer devices using the band

a, c, d

Compared to the 2.4 GHz and 6 GHz frequency bands, the 5 GHz frequency range offers:

a) The longest range among available Wi-Fi bands

b) The best penetration through walls and obstacles

c) The highest number of non-overlapping channels

d) The fastest data speeds of all frequency bands

e) None of the above

e) None of the above

Which of the statements listed below best describes the effect of increasing channel width in a wireless network?

a) Extends the range of the wireless signal

b) Increases data throughput but may cause more interference

c) Minimizes latency for all connected devices

d) Reduces interference from neighboring channels

b) Increases data throughput but may cause more interference

Which of the following answers refer(s) to Bluetooth? (Select all that apply)

a) Operates in the 2.4 GHz frequency band

b) Requires line-of-sight for optimal performance

c) Short-range wireless communication

d) Optimized for creating PANs

e) Used for peripheral, wearable and IoT devices

a, c, d, e

What are the main characteristics of 802.11 networks? (Select 3 answers)

a) Optimized for long-distance wireless communication

b) Built to support infrastructure and ad-hoc network modes

c ) Engineered for high-speed wireless data transmission

d) Standardized by IEEE for WLANs as an alternative to wired LANs

e) Designed to operate in licensed frequency bands

f) Structured around base stations for network coverage

c, d, f

Which of the answers listed below refer(s) to NFC? (Select all that apply)

a) Dependent on clear line-of-sight for data transfer

b) Standardized for operation in the 2.4 GHz frequency band

c) Built for very short-range wireless communication (typically up to 4 cm)

d) Used for secure transactions, such as contactless payments

e) Designed to operate in licensed frequency bands

f) Commonly found in smart cards, passports, and access control systems

c, d, f