Introduction of Information Security Systems

1. Which if the following IPv6 address type is assigned to multiple interfaces but packets will only be delivered to one? a. Multicast
b. Anycast
c. Unicast
d. Broadcast

Grade: 1 User Responses: b.Anycast Feedback: a.An anycast address is assigned to a group of interfaces on multiple nodes. Packets are delivered to the “first” interface only.

2. Routers operate at which OSI layer? a. Physical
b. Transport
c. Network
d. Session

Grade: 1 User Responses: c.Network Feedback: a.Routers operate at the network layer making routing decisions based on IP addresses.

3. Which of the following is NOT a private IPv4 address? Choose all that apply. a. 192.168.5.60
b. 172.25.6.4
c. 10.0.6.5
d. 26.68.6.1

Grade: 1 User Responses: d.26.68.6.1 Feedback: a.The private IP address ranges are as follows.
IP Class Assigned Range
Class A 10.0.0.0-10.255.255.255
Class B 172.16.0.0-172.31.255.255
Class C 192.168.0.0-192.168.255.255

4. What is a server that evaluates Internet requests from LAN devices against a set called? a. Proxy
b. Firewall
c. Load balancer
d. NAT server

Grade: 1 User Responses: a.Proxy Feedback: a.A server that evaluates Internet requests from LAN devices against a set of rules is called a proxy server. NAT servers perform private to public address translation; load balancers manage traffic between cluster hosts; and a firewall filters traffic based on access control lists.

5. Which type of device maintains awareness of the status of connections, thereby preventing IP spoofing attacks? a. Stateless packet filtering firewall
b. Stateful packet filtering firewall
c. NAT filter
d. Application-level gateway

Grade: 1 User Responses: b.Stateful packet filtering firewall Feedback: a.A stateful packet filtering firewall is one that monitors the state of each connection by examining the header of each packet. A stateless packet filtering firewall