Part 5.4

A company notices that during peak hours, their network slows down significantly, affecting all users. Which of the following is the most likely cause of this issue?

• Network congestion due to excessive simultaneous usage

• Incorrect IP addressing

• Outdated antivirus software

• Faulty power supply

You are tasked with identifying a bandwidth bottleneck in a network. Which method would best help you determine where the bottleneck is occurring?

• Monitoring network traffic at different segments

• Rebooting all network devices

• Changing all network cables

• Upgrading user computers

A user complains that video calls are frequently interrupted and delayed. Which network performance metric should you measure to assess the impact of this issue?

• Latency

• MAC address

• Subnet mask

• DNS records

If a network is experiencing high packet loss, which of the following is a likely effect on data transmission?

• Data needs to be retransmitted, causing delays

• Increased wireless range

• Lower CPU usage

• Improved throughput

Which scenario best illustrates the impact of jitter on a network application?

• Voice calls have choppy or distorted audio

• Web pages load faster than usual

• Printers stop working

• Users cannot log in to their accounts

A wireless network in an office building is experiencing slow speeds and frequent disconnects. Which factor is most likely contributing to this performance issue?

• Interference from other wireless devices

• Incorrect file permissions

• Outdated printer drivers

• Low monitor resolution

When troubleshooting network congestion, which of the following actions would help alleviate the problem?

• Limiting the number of simultaneous connections

• Disabling all firewalls

• Reducing screen brightness

• Changing the default gateway

A network administrator notices that the throughput capacity is much lower than the available bandwidth. What could be a possible reason for this discrepancy?

• High network congestion causing packet loss

• Using fiber optic cables

• Assigning static IP addresses

• Increasing the subnet size

Which tool would you use to measure the latency between two network devices?

• Ping command

• Disk defragmenter

• Task manager

• Word processor

A user reports that their wireless connection is unstable only in certain areas of the building. What is the most likely cause?

• Physical obstructions or interference in those areas

• Incorrect email settings

• Expired software license

• Faulty keyboard