- (Topic 3)
A network administrator is preparing answers for an annual risk assessment that is required for compliance purposes. Which of the following would be an example of an internal threat?

1. A. An approved vendor with on-site offices
2. B. An infected client that pulls reports from the firm
3. C. A malicious attacker from within the same country
4. D. A malicious attacker attempting to socially engineer access into corporate offices

Correct Answer: A
Insider threat= insider threat is defined as the threat that an employee or a contractor will use his or her authorized access, wittingly or unwittingly, to do harm

- (Topic 1)
A technician is installing a cable modem in a SOHO. Which of the following cable types will the technician MOST likely use to connect a modem to the ISP?

1. A. Coaxial
2. B. Single-mode fiber
3. C. Cat 6e
4. D. Multimode fiber

Correct Answer: A
Coaxial cable is a type of cable that consists of a central copper conductor surrounded by an insulating layer and a braided metal shield. Coaxial cable is commonly used to connect a cable modem to an ISP by transmitting data over cable television networks. Coaxial cable can support high bandwidth and long distances with minimal interference or attenuation. References: https://partners.comptia.org/docs/default-source/resources/comptia-network-n10-008-exam-objectives-(2-0), https://www.techopedia.com/definition/4027/coaxial-cable

- (Topic 3)
Several end users viewing a training video report seeing pixelated images while watching. A network administrator reviews the core switch and is unable to find an immediate cause. Which of the following BEST explains what is occurring?

1. A. Jitter
2. B. Bandwidth
3. C. Latency
4. D. Giants

Correct Answer: A
"Jitter is the loss of packets due to an overworked WAP. Jitter shows up as choppy conversations over a video call, strange jumps in the middle of an online game—pretty much anything that feels like the network has missed some data. Latency is when data stops moving for a moment due to a WAP being unable to do the work. This manifests as a Word document that stops loading, for example, or an online file that stops downloading."

- (Topic 3)
Users are reporting intermittent Wi-Fi connectivity in specific parts of a building. Which of the following should the network administrator check FIRST when troubleshooting this issue? (Select TWO).

1. A. Site survey
2. B. EIRP
3. C. AP placement
4. D. Captive portal
5. E. SSID assignment
6. F. AP association time

Correct Answer: AC
This is a coverage issue. WAP placement and power need to be checked. Site survey should be done NEXT because it takes a while.

- (Topic 2)
A network administrator is downloading a large patch that will be uploaded to several enterprise switches simultaneously during the day's upgrade cycle. Which of the following should the administrator do to help ensure the upgrade process will be less likely to cause problems with the switches?

1. A. Confirm the patch's MD5 hash prior to the upgrade
2. B. Schedule the switches to reboot after an appropriate amount of time.
3. C. Download each switch's current configuration before the upgrade
4. D. Utilize FTP rather than TFTP to upload the patch

Correct Answer: A
The network administrator should confirm the patch’s MD5 hash prior to the upgrade to help ensure the upgrade process will be less likely to cause problems with the switches. MD5 (Message Digest 5) is a cryptographic hash function that produces a 128-bit hash value for any given input. It can be used to verify the integrity and authenticity of a file by comparing its hash value with a known or expected value. If the hash values match, it means that the file has not been corrupted or tampered with during transmission or storage. If the hash values do not match, it means that the file may be damaged or malicious and should not be used for the upgrade. References: https://www.cisco.com/c/en/us/support/docs/security-vpn/secure-shell-ssh/15292-scp.html