Microsoft Networking Essentials Exam Case Studies & Practical Application 3

Question 1

A network administrator finds that two switches are causing a broadcast storm. Which protocol should be enabled to prevent this?

Accepted Answer

Spanning Tree Protocol (STP)

Answer

STP prevents broadcast storms by detecting and blocking redundant paths that would create switching loops.

Question 2

A company is migrating from IPv4 to IPv6 but needs both protocols to work simultaneously during the transition. What method supports this?

Accepted Answer

Dual-stack implementation

Answer

Dual-stack allows devices to run both IPv4 and IPv6 simultaneously, enabling a gradual migration without losing connectivity.

Question 3

An employee reports their laptop gets a 169.254.x.x IP address when connecting to the office network. What does this indicate?

Accepted Answer

The DHCP server is unreachable and APIPA assigned an address

Answer

APIPA (Automatic Private IP Addressing) assigns 169.254.x.x addresses when a DHCP server cannot be reached.

Question 4

A company's web server is accessible internally but not from the internet. The server has a private IP. What must be configured on the firewall?

Accepted Answer

Port forwarding (DNAT)

Answer

Port forwarding maps incoming public IP traffic on a specific port to the server's private IP address.

Question 5

During a network audit, a technician discovers an unknown device connected to a switch port in the server room. What is the immediate best practice?

Accepted Answer

Disable the port and investigate the device

Answer

Disabling the port immediately contains a potential security threat while an investigation identifies the unknown device.

Microsoft Networking Essentials Exam Practice Test