Microsoft Networking Essentials Exam Microsoft Networking Essentials: Final Course 2 — Questions and Answers
Question 1: A technician needs to segment a Class C network (192.168.10.0) into at least 6 subnets. Which subnet mask achieves this with the most usable hosts per subnet?
- 255.255.255.192
- 255.255.255.224 (Correct answer)
- 255.255.255.240
- 255.255.255.248
Correct answer: 255.255.255.224
255.255.255.224 (/27) borrows 3 bits, creating 8 subnets each with 30 usable hosts, meeting the 6-subnet requirement with more hosts than /28 or /29.
Question 2: Which IEEE standard defines the Spanning Tree Protocol (STP) used to prevent Layer 2 loops?
- IEEE 802.1Q
- IEEE 802.1D (Correct answer)
- IEEE 802.3
- IEEE 802.11
Correct answer: IEEE 802.1D
IEEE 802.1D defines the original Spanning Tree Protocol that prevents switching loops by placing redundant ports in a blocking state.
Question 3: A user can ping a remote server by IP address but not by hostname. Which service is most likely misconfigured?
- DHCP
- DNS (Correct answer)
- WINS
- ARP
Correct answer: DNS
DNS resolves hostnames to IP addresses; if name resolution fails but IP connectivity works, DNS is the problem.
Question 4: Which port does HTTPS use by default?
- 80
- 8080
- 443 (Correct answer)
- 8443
Correct answer: 443
HTTPS uses TCP port 443 for encrypted web communication via SSL/TLS.
Question 5: What is the primary function of NAT (Network Address Translation) in a small office network?
- Encrypts all outbound traffic
- Maps private IP addresses to a public IP address (Correct answer)
- Assigns IP addresses automatically to clients
- Routes packets between different VLANs
Correct answer: Maps private IP addresses to a public IP address
NAT translates private internal IP addresses to one or more public IP addresses, allowing multiple devices to share a single public IP.
Question 6: Which cable category is required to support 10 Gigabit Ethernet over 100 meters?
- Cat 5e
- Cat 6
- Cat 6A (Correct answer)
- Cat 7
Correct answer: Cat 6A
Cat 6A (Augmented Category 6) supports 10GbE up to 100 meters, while Cat 6 only supports 10GbE up to 55 meters.
Question 7: A switch port configured as a trunk port uses which protocol to tag VLAN information on frames?
- ISL
- 802.1Q (Correct answer)
- VTP
- STP
Correct answer: 802.1Q
IEEE 802.1Q is the industry-standard protocol that inserts a 4-byte VLAN tag into Ethernet frames on trunk links.
Microsoft Networking Essentials Exam Microsoft Networking Essentials: Final Course 2
A technician needs to segment a Class C network (192.168.10.0) into at least 6 subnets.
Which subnet mask achieves this with the most usable hosts per subnet?