Question
Assume you have been hired as a consultant by a medium-sized local business. Their IT manager quit and left the DHCP server in a mess. You have wiped the configuration and need to start from scratch. Here's what you've managed to figure out from old emails and hand scribbled notes:
1) The company owns the entire 74.221.24.x range of public IP addresses.
2) The subnetwork has approximately 200 personal computing devices, all with dynamically assigned, public IP addresses.
3) The DHCP server's static IP address is 74.221.24.2.
4) The name server's static IP address is 74.221.24.253.
5) The gateway;s static IP address is 74.221.24.254.
6) The web server has a static IP address of 74.221.24.3.
You decide to take advantage of the largest possible range of IP addresses for the pool. You choose a lease time of one week, since the list of network devices is fairly static.
Question 11
Assume a computer wants to send a message to a computer identified by the domain name google. What is the IP address of the server that the client computer would contact to convert the domain name to an IP address?
Question 12
Assume all the servers described in the narrative are all assigned static IP addresses. Furthermore, assume the DHCP server has been granted the largest, contiguous block of available IP addresses in the subnet range to give out as dynamic IP addresses.
Mathematically speaking, what is the first possible IP address in the DHCP server's pool for addresses?
1) The company owns the entire 74.221.24.x range of public IP addresses.
2) The subnetwork has approximately 200 personal computing devices, all with dynamically assigned, public IP addresses.
3) The DHCP server's static IP address is 74.221.24.2.
4) The name server's static IP address is 74.221.24.253.
5) The gateway;s static IP address is 74.221.24.254.
6) The web server has a static IP address of 74.221.24.3.
You decide to take advantage of the largest possible range of IP addresses for the pool. You choose a lease time of one week, since the list of network devices is fairly static.
Question 11
Assume a computer wants to send a message to a computer identified by the domain name google. What is the IP address of the server that the client computer would contact to convert the domain name to an IP address?
Question 12
Assume all the servers described in the narrative are all assigned static IP addresses. Furthermore, assume the DHCP server has been granted the largest, contiguous block of available IP addresses in the subnet range to give out as dynamic IP addresses.
Mathematically speaking, what is the first possible IP address in the DHCP server's pool for addresses?
Answers
Answered by
GPT-4o mini
### Question 11
To convert a domain name (such as "google") to an IP address, a computer must contact a Domain Name System (DNS) server. According to the information provided, the name server (DNS server) has a static IP address of **74.221.24.253**. Therefore, the computer would contact the DNS server with the IP address **74.221.24.253** to perform the domain name resolution.
### Question 12
Given the information provided, the DHCP server has been assigned the largest contiguous block of available IP addresses within the provided subnet range of **74.221.24.x**. The IP addresses that are static have already been defined:
- DHCP server static IP: **74.221.24.2**
- Name server static IP: **74.221.24.253**
- Gateway static IP: **74.221.24.254**
- Web server static IP: **74.221.24.3**
To determine the first possible IP address in the DHCP server's pool, we need to exclude the static IP addresses already assigned.
The available IP addresses in the range from **74.221.24.1** to **74.221.24.255** can be analyzed as follows:
**Static IP addresses to exclude:**
- 74.221.24.2 (DHCP)
- 74.221.24.3 (Web server)
- 74.221.24.253 (Name server)
- 74.221.24.254 (Gateway)
The lowest unused address in the range is **74.221.24.1**, and since the DHCP server can assign IP addresses starting from the lowest available, the first possible IP address in the DHCP server's pool for dynamic addresses is:
**74.221.24.1**.
To convert a domain name (such as "google") to an IP address, a computer must contact a Domain Name System (DNS) server. According to the information provided, the name server (DNS server) has a static IP address of **74.221.24.253**. Therefore, the computer would contact the DNS server with the IP address **74.221.24.253** to perform the domain name resolution.
### Question 12
Given the information provided, the DHCP server has been assigned the largest contiguous block of available IP addresses within the provided subnet range of **74.221.24.x**. The IP addresses that are static have already been defined:
- DHCP server static IP: **74.221.24.2**
- Name server static IP: **74.221.24.253**
- Gateway static IP: **74.221.24.254**
- Web server static IP: **74.221.24.3**
To determine the first possible IP address in the DHCP server's pool, we need to exclude the static IP addresses already assigned.
The available IP addresses in the range from **74.221.24.1** to **74.221.24.255** can be analyzed as follows:
**Static IP addresses to exclude:**
- 74.221.24.2 (DHCP)
- 74.221.24.3 (Web server)
- 74.221.24.253 (Name server)
- 74.221.24.254 (Gateway)
The lowest unused address in the range is **74.221.24.1**, and since the DHCP server can assign IP addresses starting from the lowest available, the first possible IP address in the DHCP server's pool for dynamic addresses is:
**74.221.24.1**.