Microsoft Networking Essentials Exam Microsoft Networking Fundamentals v1 (98-366) 4 — Questions and Answers
Question 1: Which port number does HTTPS use by default?
- 80
- 8080
- 443 (Correct answer)
- 21
Correct answer: 443
HTTPS uses TCP port 443 by default, providing encrypted web communication using SSL/TLS.
Question 2: What is a VLAN primarily used for in an enterprise network?
- To increase physical cable bandwidth
- To logically segment a network without additional hardware (Correct answer)
- To connect two separate buildings
- To provide wireless access to users
Correct answer: To logically segment a network without additional hardware
VLANs (Virtual LANs) logically segment a physical network into separate broadcast domains, improving security and reducing unnecessary broadcast traffic.
Question 3: Which DNS record type maps a hostname to an IPv4 address?
- MX
- AAAA
- CNAME
- A (Correct answer)
Correct answer: A
The DNS A record (Address record) maps a fully qualified domain name (FQDN) to its corresponding IPv4 address.
Question 4: What is the maximum cable length for a standard Cat5e UTP Ethernet segment?
- 50 meters
- 100 meters (Correct answer)
- 185 meters
- 500 meters
Correct answer: 100 meters
The IEEE 802.3 standard specifies a maximum segment length of 100 meters (328 feet) for UTP Cat5e Ethernet cabling.
Question 5: Which authentication protocol sends passwords in cleartext and should never be used on insecure networks?
- CHAP
- MS-CHAPv2
- PAP (Correct answer)
- EAP
Correct answer: PAP
PAP (Password Authentication Protocol) transmits usernames and passwords in plaintext, making it vulnerable to packet capture attacks.
Question 6: A switch receives a frame with an unknown destination MAC address. What action does it take?
- Drops the frame
- Sends an ARP request
- Floods the frame out all ports except the source port (Correct answer)
- Forwards it to the default gateway
Correct answer: Floods the frame out all ports except the source port
When a switch receives a frame with an unknown destination MAC, it floods the frame out all ports except the one it arrived on, a process called unknown unicast flooding.
Question 7: Which WAN technology uses dedicated point-to-point connections and is commonly used for leased line services?
- Frame Relay
- ATM
- MPLS
- T1/E1 (Correct answer)
Correct answer: T1/E1
T1 (in the US) and E1 (in Europe) are dedicated point-to-point leased line technologies providing fixed bandwidth for WAN connectivity.
Microsoft Networking Essentials Exam Microsoft Networking Fundamentals v1 (98-366) 4
Which port number does HTTPS use by default?