Networking Fundamentals and CCNA Review

Practice flashcards covering layer 2 behavior, network APIs, virtualization, and protocol fundamentals based on lecture questions.

What is the default behavior of a Layer 2 switch when a frame with an unknown destination MAC address is received?

The Layer 2 switch floods packets to all ports except the receiving port in the given VLAN

What is the destination MAC address of a broadcast frame?

ff:ff:ff:ff:ff:ff

Which purpose does a northbound API serve in a controller-based networking architecture?

Facilitates communication between the controller and the applications.

What role does a hypervisor provide for each virtual machine in server virtualization?

Control and distribution of physical resources.

According to the Spanning Tree Protocol (STP), how are forwarding loops prevented at OSI Layer 2?

Port blocking

What is the difference regarding reliability and communication type between TCP and UDP?

TCP is reliable and is a connection-oriented protocol; UDP is not reliable and is a connectionless protocol.

What is the maximum bandwidth of a T1 point-to-point connection?

$$1.544\,Mbps$$

What is the purpose of a Service Set Identifier (SSID)?

It identifies a WLAN (Wireless Local Area Network).

Which command is used to enable LLDP globally on a Cisco IOS ISR?

lldp run

Which configuration-management technology uses SSH for remote device communication and YAML for fundamental configuration elements?

Ansible