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CTSYSADL_Week 5

QuestionAnswer
1. DNS primarily functions as a configuration service that automatically leases IP addresses and network settings to client devices. False. DNS is a name resolution service. The real answer is that DHCP automatically assigns IP addresses and network configuration parameters such as subnet mask, default gateway, and DNS server.
2. DHCP reduces the risk of duplicate IP address conflicts by dynamically assigning network parameters when devices connect to the network. True.
3. DNS translates human-readable domain names into machine-readable IP addresses so computers can locate network resources. True.
4. DNS is only useful for web browsing and has no role in email delivery or online services. False. DNS supports web browsing, email delivery, and other internet services. The real answer is that DNS records such as MX records help route email to the correct mail servers.
5. DNS can improve website access speed by resolving domain names into IP addresses efficiently. True.
6. DHCP requires administrators to manually configure the IP address, subnet mask, and default gateway on every device. False. DHCP automates the assignment of these network settings. The real answer is that manual configuration is reduced because the DHCP server provides the settings dynamically.
7. DNS load distribution can route incoming web traffic across multiple servers based on factors such as server load, geographic location, or network proximity. True.
8. A domain with multiple authoritative DNS servers can support redundancy and failover to improve service availability. True.
9. In DNS operation, queries are resolved through a hierarchy that may include root servers, top-level domain servers, and authoritative name servers. True.
10. DHCP operates by permanently assigning one IP address to every device without using leases. False. DHCP commonly leases IP addresses dynamically. The real answer is that devices request configuration from a DHCP server, which provides an available IP address and related settings for a lease period.
11. DNSSEC helps protect DNS data integrity and can reduce risks such as DNS spoofing and phishing-related redirection. True.
12. DNS and DHCP have the same primary purpose because both translate domain names into IP addresses. False. DNS translates domain names into IP addresses. The real answer is that DHCP assigns IP addresses and other network configuration parameters to devices.
13. DHCP can provide a client with an IP address, subnet mask, default gateway, and DNS server information. True.
14. DNS is unnecessary in internet communication because users can access all services only by using IP addresses. False. Although IP addresses can be used in some cases, DNS is essential because it allows users to access websites and services using readable domain names.
15. Website accessibility depends partly on DNS because DNS helps locate and connect users to servers hosting web content. True.
16. Load balancing through DNS is used only for security and does not affect performance or availability. False. DNS load balancing distributes traffic across multiple servers. The real answer is that it can enhance performance and help maintain high availability.
17. DHCP is classified as a name resolution service because it resolves hostnames to IP addresses. False. DHCP is a configuration service. The real answer is that DNS is the name resolution service, while DHCP assigns network configuration settings.
18. DNS and DHCP are both important network management components because they support communication, connectivity, and efficient network administration. True.
Created by: MamurMD
 

 



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