Question 1

Connection-oriented services occur between the ____________________ sublayer of the data-link layer (layer 2) and the network layer (layer 3) in the OSI model.

Accepted Answer

LLC,logica

Question 2

Do routers maintain information about network station addresses and network status in databases?

Accepted Answer

A) True 
 B)False

Question 3

In the OSI model, what layer is the network layer?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 4

What is displayed in the figure above?

Accepted Answer

A)  OSPF border areas 
B)  Using NAT on a small office network 
C)  Proxy firewall as an application-level gateway 
D)  Firewall proxy as a circuit-level gateway 
A)  OSPF border areas 
B)  Using NAT on a small office network 
C)  Proxy firewall as an application-level gateway 
D)  Firewall proxy as a circuit-level gateway

Question 5

UDP does not provide the same level of reliability and error checking as TCP, because it relies only on the ____________________ to ensure reliability.

Accepted Answer

The answer of UDP does not provide the same level...

Question 6

What is the default subnet mask for a Class D network?

Accepted Answer

A)  255.0.0.0 
B)  255.255.0.0 
C)  255.255.255.0 
D)  255.255.255.224 
E)  None of the above 
A)  255.0.0.0 
B)  255.255.0.0 
C)  255.255.255.0 
D)  255.255.255.224 
E)  None of the above

Question 7

Red Hat Linux 9.x offers the ____________________ interface for configuring NAT and complex firewall security from the command line in a terminal window.

Accepted Answer

The answer of Red Hat Linux 9.x offers the ____________________...

Question 8

What four fields does a UDP header contain?

Accepted Answer

1. Source port
2. De

Question 9

The payload data within the IP packet is actually the TCP header and the application data when connection-oriented services are used.

Accepted Answer

A) True 
 B)False

Question 10

A router performs packet filtering and is often used as a firewall on a network, in addition to the other functions it performs.

Accepted Answer

A) True 
 B)False

Question 11

When a TCP segment is formatted with the additional IP header information, the entire unit is called a(n) ____________________ or packet.

Accepted Answer

The answer of When a TCP segment is formatted with...

Question 12

When using the Red Hat Linux 9.x Security Level Configuration tool, which security level only allows connections for using DNS and DHCP services?

Accepted Answer

A)  High 
B)  Medium 
C)  Low 
D)  No Firewall 
A)  High 
B)  Medium 
C)  Low 
D)  No Firewall

Question 13

Does NetBEUI use the type of addressing that would enable it to be forwarded or routed to networks other than the one on which it is used?

Accepted Answer

A) True 
 B)False

Question 14

What is displayed in the figure above?

Accepted Answer

A)  Proxy firewall as an application-level gateway 
B)  Firewall proxy as a circuit-level gateway 
C)  OSPF border areas 
D)  Implementing border security 
A)  Proxy firewall as an application-level gateway 
B)  Firewall proxy as a circuit-level gateway 
C)  OSPF border areas 
D)  Implementing border security

Question 15

What are the three component protocols within the TCP/IP protocol suite?

Accepted Answer

1. Transmission Cont

Question 16

Some proxies are able to provide caching services as a way to reduce the load on servers within the internal network.

Accepted Answer

A) True 
 B)False

Question 17

Class D addresses do not reflect the network size, but only tell you that the communication is a multicast.

Accepted Answer

A) True 
 B)False

Question 18

TCP (and UDP) ____________________ software may be used to simply collect information about a target, without the target's knowledge; it may be used to gain access to a system, or it may be used to crash a system.

Accepted Answer

The answer of TCP (and UDP) ____________________ software may be...

Question 19

What are the four ways to perform network address translation?

Accepted Answer

1. Dynamic translation (or IP

Question 20

If you had configured a firewall in Windows XP and were concerned that you had been the victim of an attack, where would you look to be able to find out this information?

Accepted Answer

A)  In the Registry of your workstation 
B)  In the \Windows\pfirewall.log file 
C)  In the ICS properties under the View log tab 
D)  In the System event log 
A)  In the Registry of your workstation 
B)  In the \Windows\pfirewall.log file 
C)  In the ICS properties under the View log tab 
D)  In the System event log

Connection-oriented services occur between the ____________________ sublayer of the data-link layer (layer 2) and the network layer (layer 3) in the OSI model.

Do routers maintain information about network station addresses and network status in databases?

In the OSI model, what layer is the network layer?

What is displayed in the figure above?

UDP does not provide the same level of reliability and error checking as TCP, because it relies only on the ____________________ to ensure reliability.

What is the default subnet mask for a Class D network?

Red Hat Linux 9.x offers the ____________________ interface for configuring NAT and complex firewall security from the command line in a terminal window.

What four fields does a UDP header contain?

The payload data within the IP packet is actually the TCP header and the application data when connection-oriented services are used.

A router performs packet filtering and is often used as a firewall on a network, in addition to the other functions it performs.

When a TCP segment is formatted with the additional IP header information, the entire unit is called a(n) ____________________ or packet.

When using the Red Hat Linux 9.x Security Level Configuration tool, which security level only allows connections for using DNS and DHCP services?

Does NetBEUI use the type of addressing that would enable it to be forwarded or routed to networks other than the one on which it is used?

What is displayed in the figure above?

What are the three component protocols within the TCP/IP protocol suite?

Some proxies are able to provide caching services as a way to reduce the load on servers within the internal network.

Class D addresses do not reflect the network size, but only tell you that the communication is a multicast.

TCP (and UDP) ____________________ software may be used to simply collect information about a target, without the target's knowledge; it may be used to gain access to a system, or it may be used to crash a system.

What are the four ways to perform network address translation?

If you had configured a firewall in Windows XP and were concerned that you had been the victim of an attack, where would you look to be able to find out this information?

Operating Systems Security: Keeping Computers and Networks Secure

Viruses, Worms, and Malicious Software

Security Through Authentication and Encryption

Account-Based Security

File, Directory, and Shared Resource Security

Physical and Network Topology Security

Wireless Security

Web, Remote Access, and VPN Security

E-Mail Security

Security Through Disaster Recovery

Security Through Monitoring and Auditing

Filters

Exam 6: Firewalls and Border Security

Connection-oriented services occur between the ____________________ sublayer of the data-link layer (layer 2) and the network layer (layer 3) in the OSI model.

Do routers maintain information about network station addresses and network status in databases?

In the OSI model, what layer is the network layer?

What is displayed in the figure above?

UDP does not provide the same level of reliability and error checking as TCP, because it relies only on the ____________________ to ensure reliability.

What is the default subnet mask for a Class D network?

Red Hat Linux 9.x offers the ____________________ interface for configuring NAT and complex firewall security from the command line in a terminal window.

What four fields does a UDP header contain?

The payload data within the IP packet is actually the TCP header and the application data when connection-oriented services are used.

A router performs packet filtering and is often used as a firewall on a network, in addition to the other functions it performs.

When a TCP segment is formatted with the additional IP header information, the entire unit is called a(n) ____________________ or packet.

When using the Red Hat Linux 9.x Security Level Configuration tool, which security level only allows connections for using DNS and DHCP services?

Does NetBEUI use the type of addressing that would enable it to be forwarded or routed to networks other than the one on which it is used?

What is displayed in the figure above?

What are the three component protocols within the TCP/IP protocol suite?

Some proxies are able to provide caching services as a way to reduce the load on servers within the internal network.

Class D addresses do not reflect the network size, but only tell you that the communication is a multicast.

TCP (and UDP) ____________________ software may be used to simply collect information about a target, without the target's knowledge; it may be used to gain access to a system, or it may be used to crash a system.

What are the four ways to perform network address translation?

If you had configured a firewall in Windows XP and were concerned that you had been the victim of an attack, where would you look to be able to find out this information?

Operating Systems Security: Keeping Computers and Networks Secure

Viruses, Worms, and Malicious Software

Security Through Authentication and Encryption

Account-Based Security

File, Directory, and Shared Resource Security

Physical and Network Topology Security

Wireless Security

Web, Remote Access, and VPN Security

E-Mail Security

Security Through Disaster Recovery

Security Through Monitoring and Auditing

Filters