Exam 6: Firewalls and Border Security

IP is a connection-oriented protocol because its primary mission is to provide network-to-network addressing and routing information, and to change the size of packets when the size varies from network to network.

(True/False)

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Question 21

Which type of proxy stores recently made service requests, allowing them to fulfill an individual client's request without needing to contact the server on the internal network?

(Multiple Choice)

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Question 22

What six tasks do routers perform?

(Essay)

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Question 23

Which of the following is performed by UDP to provide communication reliability?

(Multiple Choice)

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Question 24

What four tasks can a proxy fulfill?

(Essay)

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Question 25

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

(True/False)

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Question 26

Can routers filter packets on the basis of information associated with each port (inbound and outbound connections) to control network traffic?

(True/False)

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Question 27

Match the following terms to the appropriate definition.

Creates a secure virtual circuit through an internal network to a client computer on an external network

RIP

Provides for reliable end-to-end delivery of data by controlling data flow

Border gateway

A portion of a network that exists between two or more networks that have different security measures in place

TCP

Correct Answer:

Verified

Creates a secure virtual circuit through an internal network to a client computer on an external network

Provides for reliable end-to-end delivery of data by controlling data flow

A portion of a network that exists between two or more networks that have different security measures in place

Developed by Novell for use with its NetWare server operating system

Used for building tables of information about the computers on a network

A protocol that incorporates NetBIOS for communications across a network

Configured to control the traffic that is permitted across a border

A calculated value used to determine if a transmission error has occurred

Used to communicate the entire contents of routing tables to other routers

Provides for low-overhead connectionless communications

(Matching)

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Question 28

Is Internet Connection Firewall available in Windows Server 2003, Enterprise Edition?

(True/False)

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Question 29

One element in border security is to configure security policies on each firewall so that access is automatically allowed, except for those who are manually configured to have access blocked through the firewall.

(True/False)

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Question 30

There are six IP address classes, Class A through Class F, each used with a different type of network.

(True/False)

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Question 31

The border router is a firewall that is configured with security policies to control the traffic that is permitted to cross a border in either direction.

(True/False)

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Question 32

What five border points should be protected by a strong border security design?

(Essay)

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Question 33

What is the only metric used by the RIP routing protocol?

(Multiple Choice)

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Question 34

IPTables is used to configure firewall and NAT activities in which of the following operating systems?

(Multiple Choice)

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Question 35

Which of the following TCP/UDP ports is used for NetBIOS applications?

(Multiple Choice)

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Question 36

The simplest way to configure a firewall in Red Hat Linux 9.x is by using the Security Level Configuration tool.

(True/False)

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Question 37

Which TCP field is used when there is too little or no optional data to complete the required header length, which must be divisible by 32?

(Multiple Choice)

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Question 38

What is the length of the MAC address on a host system?

(Multiple Choice)

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Question 39

When two devices communicate using connection-oriented methods, do they establish sequence numbers for each frame that is transmitted and place the sequence number in the frame header?

(True/False)

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Question 40

Showing 21 - 40 of 86

IP is a connection-oriented protocol because its primary mission is to provide network-to-network addressing and routing information, and to change the size of packets when the size varies from network to network.

Which type of proxy stores recently made service requests, allowing them to fulfill an individual client's request without needing to contact the server on the internal network?

What six tasks do routers perform?

Which of the following is performed by UDP to provide communication reliability?

What four tasks can a proxy fulfill?

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

Can routers filter packets on the basis of information associated with each port (inbound and outbound connections) to control network traffic?

Is Internet Connection Firewall available in Windows Server 2003, Enterprise Edition?

One element in border security is to configure security policies on each firewall so that access is automatically allowed, except for those who are manually configured to have access blocked through the firewall.

There are six IP address classes, Class A through Class F, each used with a different type of network.

The border router is a firewall that is configured with security policies to control the traffic that is permitted to cross a border in either direction.

What five border points should be protected by a strong border security design?

What is the only metric used by the RIP routing protocol?

IPTables is used to configure firewall and NAT activities in which of the following operating systems?

Which of the following TCP/UDP ports is used for NetBIOS applications?

The simplest way to configure a firewall in Red Hat Linux 9.x is by using the Security Level Configuration tool.

Which TCP field is used when there is too little or no optional data to complete the required header length, which must be divisible by 32?

What is the length of the MAC address on a host system?

When two devices communicate using connection-oriented methods, do they establish sequence numbers for each frame that is transmitted and place the sequence number in the frame header?

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

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