Net 3/4 7.5-7.7 Test Review

Which of the following allows incoming traffic addressed to a specific port to move through the firewall and be transparently forwarded to a specific host on the private network?

• Dynamic NAT

• IP masquerade

• DNAT

• OSPF

Which of the following has the least default administrative distance?

• OSPF

• Static route to an IP address

• RIP

• External BGP

You run a small network for your business that has a single router connected to the internet and a single switch. You keep sensitive documents on a computer that you would like to keep isolated from other computers on the network. Other hosts on the network should not be able to communicate with this computer through the switch, but you still need to access the network through the computer. What should you use for this situation?

• Port security

• VLAN

• Spanning Tree

• VPN

Which of the following NAT implementations maps a single private IP address to a single public IP address on the NAT router?

• Dynamic NAT

• Static NAT

• Many-to-one NAT

• IP masquerade

Which of the following BEST describes dynamic routing?

• Routing entries are manually added to routing tables.

• Routing is done between autonomous systems.

• Routers learn about networks by sharing routing information with each other

• Routing is done within an autonomous system.

You manage a network with multiple switches. You find that your switches are experiencing heavy broadcast storms. Which of the following will help reduce the effects of these broadcast storms?

• Disable auto-duplex detection.

• Configure each switch with a single trunk port.

• Manually set the speed for each switch port.

• Enable Spanning Tree on the switches.

What are the main differences between the OSPF and IS-IS routing protocols?

• OSPF is an IGP routing protocol, while IS-IS is a BGP routing protocol.

• OSPF requires an area 0, while IS-IS does not.

• OSPF is a link state protocol, while IS-IS is not.

• OSPF is a classful protocol, while IS-IS is a classless protocol.

Which of the following best describes DHCP scope exhaustion?

• A denial of service from a lack of IP addresses in a DHCP server's pool.

• When an attacker adds a second DHCP server to a network and offers IP addresses to clients wanting to join the network.

• When IP address lease times on a DHCP server are shortened.

• When a DHCP snooping technique is used to drop packets from untrusted DHCP servers.

In which of the following tables does a NAT router store port numbers and their associated private IP addresses?

• Translation table

• Routing table

• MAC address table

• ARP table

Which of the following routing protocols is a hybrid that uses a composite number for its metric based on bandwidth and delay?

• RIP

• BGP

• OSPF

• EIGRP