Microsoft Networking Essentials Exam Quality Control & Assurance 3

Question 1

What is the purpose of a network baseline in quality assurance?

Accepted Answer

To document normal performance for comparison during issues

Answer

To reset all network devices to factory defaults

Answer

To block unauthorized network access

Answer

To assign static IP addresses to all hosts

Question 2

Which command-line tool measures the path and latency between a source and destination on Windows?

Accepted Answer

tracert

Answer

ipconfig

Answer

netstat

Answer

nslookup

Question 3

A VoIP call quality degrades during business hours. Which QoS feature would best address this?

Accepted Answer

Prioritizing voice traffic over data traffic

Answer

Increasing DHCP lease time

Answer

Disabling spanning tree protocol

Answer

Changing the DNS suffix

Question 4

What does Mean Time Between Failures (MTBF) measure in network quality assurance?

Accepted Answer

Average operational time between equipment failures

Answer

Average time to repair a failed device

Answer

Total downtime over a calendar year

Answer

Number of network errors per hour

Question 5

Which protocol allows network devices to send alerts to a management system when thresholds are exceeded?

Accepted Answer

SNMP (Simple Network Management Protocol)

Answer

FTP (File Transfer Protocol)

Answer

SMTP (Simple Mail Transfer Protocol)

Answer

HTTP (Hypertext Transfer Protocol)

Question 6

A network switch port shows excessive CRC errors in its statistics. What does this indicate?

Accepted Answer

Physical layer problems such as bad cable or NIC

Answer

IP address conflict on the segment

Answer

Duplicate MAC addresses

Answer

Spanning tree loop detected

Question 7

In the context of network SLAs, what does 'five nines' availability refer to?

Accepted Answer

99.999% uptime, equaling about 5.26 minutes of downtime per year

Answer

99.5% uptime, equaling about 1.8 days of downtime per year

Answer

5 Gbps guaranteed bandwidth

Answer

Five redundant network paths