Intro-To-Connectivity

Which layers of the OSI model does a hub and a bridge operate in respectively?

• L2 & L3

• They both operate at L2

• L2 & L1

• L1 & L2

Which network topology provides the best redundancy?

• Full Mesh

• Star

• Ring

• Bus

Layer 4 PDU is called _______.

What does a switch do to a frame with an unknown destination MAC address, coming from a PC in vlan1 ?

• It drops the frame

• It floods the frame to all end hosts

• It sends the frame to all end hosts in vlan1 only

• None of the previous

What is a default gateway?

• A device that broadcasts packets with unknown destination IP addresses

• The L2 device connected to the end users

• The device where traffic destined outside the network is forwarded to.

• The device responsible for filtering the traffic

If 2 devices are connected through a point-to-point connection with the below IP addresses, will they be able to communicate?

PC1: 192.168.1.1/24

PC2: 192.168.1.2/24

• yes

• no

• Only if we connect them to a router

• Only if we connect them to a switch

Which of the following are advantages of using VLANs? (Multiple correct answers.)

• Improving network security

• Reducing the network traffic

• Guarantees high internet speeds for all VLAN members

• Simplifies IP addressing by removing the need for subnets

When traffic flows from an upper layer to a lower layer in the OSI model it gets ____________.

Between 2 switches the ports should be configured as

• trunk ports

• logical ports

• access ports

• VLANs

What does a Router do if it receives a packet with a destination IP address that is not present in its routing table?

• It broadcasts the packet

• It drops the packet

• It sends the packet anyway

• Router deals with frames not packets