Microsoft Networking Essentials Exam Case Studies & Practical Application 5 — Questions and Answers
Question 1: A company wants to prioritize VoIP traffic over regular data traffic on their network. Which technology should they implement?
- Port mirroring
- Quality of Service (QoS) (Correct answer)
- Link aggregation
- VLAN pruning
Correct answer: Quality of Service (QoS)
QoS allows administrators to classify and prioritize traffic types, ensuring VoIP packets receive lower latency and higher priority.
Question 2: After a fiber cut, an ISP reroutes traffic through a backup path, but users experience high latency. What tool helps identify where the delay is occurring?
- ipconfig
- traceroute (tracert) (Correct answer)
- arp -a
- nmap
Correct answer: traceroute (tracert)
Traceroute shows each hop along the network path and the latency to each hop, identifying where delays are introduced.
Question 3: A company's server room has only a single switch connecting all servers. A technician recommends adding a second switch and cross-connecting them. What benefit does this provide?
- Increased IP address space
- Redundancy so that if one switch fails, connectivity is maintained (Correct answer)
- Faster internet speeds
- Easier VLAN management
Correct answer: Redundancy so that if one switch fails, connectivity is maintained
Redundant switches with cross-connections ensure servers remain connected if one switch fails, improving high availability.
Question 4: A retail store needs to accept credit card payments over their network. Which compliance framework governs how they must secure cardholder data?
- HIPAA
- PCI DSS (Correct answer)
- SOX
- GDPR
Correct answer: PCI DSS
PCI DSS (Payment Card Industry Data Security Standard) defines security requirements for any organization that stores, processes, or transmits cardholder data.
Question 5: A network technician is asked to connect two switches with multiple links to increase bandwidth and provide redundancy without STP blocking ports. What feature should be configured?
- Port mirroring
- Link Aggregation (EtherChannel/LACP) (Correct answer)
- VLAN trunking only
- Rapid STP
Correct answer: Link Aggregation (EtherChannel/LACP)
Link aggregation combines multiple physical links into one logical link, increasing bandwidth and providing redundancy without STP blocking.
Question 6: During a security audit, it is discovered that sensitive data is transmitted in cleartext between two servers. What is the recommended remediation?
- Increase network bandwidth between the servers
- Implement TLS/SSL encryption for data in transit (Correct answer)
- Move both servers to the same VLAN
- Install antivirus on both servers
Correct answer: Implement TLS/SSL encryption for data in transit
TLS/SSL encrypts data in transit between servers, protecting it from interception and eavesdropping on the network.
Question 7: A technician is setting up a wireless network in a warehouse with metal shelving. Users report frequent disconnections in certain areas. What is the most likely cause and solution?
- Incorrect SSID, reconfigure all devices
- RF interference and signal blocking from metal; add wireless access points to improve coverage (Correct answer)
- The wireless standard is too old; upgrade to 802.11a
- Too many SSIDs are broadcasting
Correct answer: RF interference and signal blocking from metal; add wireless access points to improve coverage
Metal shelving absorbs and reflects radio frequency signals, creating dead zones; additional access points improve coverage in affected areas.
Microsoft Networking Essentials Exam Case Studies & Practical Application 5
A company wants to prioritize VoIP traffic over regular data traffic on their network.
Which technology should they implement?