Subnets and IP Routing

How many unique host addresses are available in a subnet with the mask 255.255.255.0?

• 128
• 512
• 254
• 253

What does the operation "ANDing" an IP address with a subnet mask accomplish?

• Obtaining the network address
• Resolving the DNS server
• Identifying the default gateway
• Determining the broadcast address

In a subnetted network, which two IP addresses cannot be assigned to individual hosts?

• Network address and Broadcast address
• Loopback address and Network address

• Default gateway address and Subnet mask address
• Private IP address and Public IP address

What protocol is typically used by computers to obtain a public IP address dynamically?

• DNS

• HTTP

• DHCP

• FTP

What is the primary purpose of a subnet mask?

• To identify the router's IP address

• To differentiate between the network and host portions of an IP address

• To allocate IP addresses dynamically

• To encrypt IP address communications

Which of the following statements about CIDR is true?

• CIDR was introduced to replace subnet masks

• CIDR allows for more efficient IP address allocation

• CIDR is a class-based IP addressing method

• CIDR uses a fixed subnet mask of 255.255.255.0

What is the reserved IP address for the network identifier?

• x.x.x.1

• x.x.x.0

• x.x.x.255

• 127.0.0.1

What term describes using the most significant bits from the host ID section to create a subnet ID?

• CIDR

• Subnet masking

• Supernetting

• Network Address Translation (NAT)

What does TCP stand for?

• Transmission Control Protocol
• Transmit Control Protocol

• Transport Control Process

• Text Communication Protocol

Why are private IP addresses used within a local network?

• To ensure global uniqueness

• To allow external devices to access the network

• To conserve the number of unique IPv4 addresses

• To simplify IP address management by the Internet registry