Microsoft Networking Essentials Exam Technology & Digital Applications 3

Question 1

Which IEEE standard defines the most common wired Ethernet technology used in enterprise networks today?

Accepted Answer

IEEE 802.3

Answer

IEEE 802.3 is the standard that governs Ethernet, including specifications for physical media, frame format, and data rates like 1 Gbps and 10 Gbps.

Question 2

A user reports being unable to reach any website by name but can ping IP addresses successfully. What is the most likely cause?

Accepted Answer

DNS server is unreachable or misconfigured

Answer

When IP connectivity works but name resolution fails, the DNS server is either down, unreachable, or configured incorrectly on the client.

Question 3

What does the 'tracert' command do on a Windows system?

Accepted Answer

Shows the hop-by-hop path packets take to a destination

Answer

Tracert sends packets with incrementing TTL values to reveal each router (hop) along the path to the destination, including latency per hop.

Question 4

Which type of malware disguises itself as legitimate software but opens a backdoor for attackers once installed?

Accepted Answer

Trojan horse

Answer

A Trojan horse appears to be a benign application but secretly installs malicious code that can give attackers remote access or steal data.

Question 5

What is the function of the Spanning Tree Protocol (STP) in a switched network?

Accepted Answer

Prevent Layer 2 broadcast loops

Answer

STP (IEEE 802.1D) prevents switching loops by placing redundant links in a blocking state, ensuring only one active path exists between any two network segments.

Microsoft Networking Essentials Exam Practice Test

Microsoft Networking Essentials Exam Practice Test

Microsoft Networking Essentials Exam Technology & Digital Applications 3