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Questions and Answers
What is the function of a firewall in a network?
What is the function of a firewall in a network?
- To connect internal and external networks
- To monitor and control network traffic based on security rules (correct)
- To prioritize network traffic for better performance
- To provide a wireless connection for devices
What role do Access Points (APs) play in a network?
What role do Access Points (APs) play in a network?
- They act as a bridge between wireless devices and a wired network (correct)
- They prevent unauthorized access to the network
- They connect multiple wireless networks together
- They supply power to wireless devices
What is the primary function of WLAN devices?
What is the primary function of WLAN devices?
- To provide a physical connection to the internet
- To extend the battery life of connected devices
- To connect wireless devices to the network (correct)
- To serve as a security system for wireless communication
What is the primary responsibility of the Application Layer in networking?
What is the primary responsibility of the Application Layer in networking?
Which of the following does a router normally use when making a decision about routing TCP/IP packets?
Which of the following does a router normally use when making a decision about routing TCP/IP packets?
What is the primary function of the Session Layer in the OSI model?
What is the primary function of the Session Layer in the OSI model?
What are the major functions of the Transport Layer in the OSI model?
What are the major functions of the Transport Layer in the OSI model?
Which features are associated with TCP (Transmission Control Protocol)?
Which features are associated with TCP (Transmission Control Protocol)?
Which protocol is known for faster data transmission?
Which protocol is known for faster data transmission?
When is NAT (Network Address Translation) typically used?
When is NAT (Network Address Translation) typically used?
What does Static NAT accomplish?
What does Static NAT accomplish?
Which NAT type is most commonly used due to its efficiency and cost-effectiveness?
Which NAT type is most commonly used due to its efficiency and cost-effectiveness?
What is the meaning of 'Outside global' in NAT?
What is the meaning of 'Outside global' in NAT?
What does the command ip nat inside source static 10.1.1.1 170.46.2.2 accomplish in Static NAT configuration?
What does the command ip nat inside source static 10.1.1.1 170.46.2.2 accomplish in Static NAT configuration?
What is the function of the 'overload' keyword in a PAT configuration?
What is the function of the 'overload' keyword in a PAT configuration?
What does the creation of a NAT pool named 'todd' enable in Dynamic NAT?
What does the creation of a NAT pool named 'todd' enable in Dynamic NAT?
Which of the following is the shortest valid abbreviation for FE80:0000:0000:0123?
Which of the following is the shortest valid abbreviation for FE80:0000:0000:0123?
Which command would you place on an interface on a private network?
Which command would you place on an interface on a private network?
Flashcards
Firewall Function
Firewall Function
Monitors and controls network traffic based on security rules.
Access Point (AP) Role
Access Point (AP) Role
Acts as a bridge between wireless devices and a wired network.
WLAN Device Function
WLAN Device Function
Connects wireless devices to the network.
Application Layer Responsibility
Application Layer Responsibility
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Router Routing Decision
Router Routing Decision
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Session Layer Function
Session Layer Function
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Transport Layer Functions
Transport Layer Functions
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TCP Features
TCP Features
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Faster Data Protocol?
Faster Data Protocol?
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When to Use NAT
When to Use NAT
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Static NAT
Static NAT
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Most Common NAT Type
Most Common NAT Type
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'Outside global' meaning in NAT
'Outside global' meaning in NAT
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Static NAT Command
Static NAT Command
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Overload Keyword Function
Overload Keyword Function
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NAT Pool
NAT Pool
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Shortest IPv6 Abbreviation
Shortest IPv6 Abbreviation
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Private Network Command
Private Network Command
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Study Notes
- Network firewalls monitor and control network traffic based on security rules.
- Access Points (APs) act as a bridge between wireless devices and a wired network.
- The primary function of WLAN devices is to connect wireless devices to the network.
- The Application Layer's main job is to provide an interface for users to interact with application services.
- Routers use the Destination IP address when routing TCP/IP packets.
- The Session Layer in the OSI model primarily establishes, maintains, and terminates sessions.
- Major functions of the Transport Layer in the OSI model include data transfer management, reliable delivery, error detection, and correction.
- Key features of TCP (Transmission Control Protocol) are connection-oriented communication, error checking, and reliable delivery.
- UDP (User Datagram Protocol) is known for faster data transmission.
- NAT (Network Address Translation) is typically used when private IPs need to share a limited number of public IPs for internet access.
- Static NAT links one local IP address to one global IP address.
- Overloading (PAT/NAT Overload) is the most commonly used NAT type because of its efficiency and cost-effectiveness.
- In NAT, "Outside global" refers to the IP address assigned to an internal device after translation.
- In static NAT configuration, the command
ip nat inside source static 10.1.1.1 170.46.2.2maps the inside local IP 10.1.1.1 to the outside global IP 170.46.2.2. - The
overloadkeyword in a PAT configuration shares one IP address across many devices. - Creating a NAT pool named 'todd' enables internal users to access the Internet using a range of public IP addresses in Dynamic NAT.
- FE8::123 is the shortest valid abbreviation for FE80:0000:0000:0123.
- The command
ip nat insidewould be placed on an interface on a private network.
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