A DHCP server is configured to update DNS records for clients. A client with hostname 'pc-1' receives a new IP address, but the DNS A record still points to the old IP. Which configuration is most likely preventing the DNS update?

The client's hostname is not registered in DNS

The DNS server is not authoritative for the zone

The DHCP server is not authorized to update DNS

The DHCP lease time is too short

You are troubleshooting a mail delivery issue. Users can send and receive email internally, but external senders report that messages to your domain are rejected. Your mail server's IP address is correct in the MX record. Which DNS record type should you verify to ensure external mail servers can find your mail server?

A record for the mail server hostname

CNAME record for the mail server

PTR record for the mail server's IP address

A network administrator is troubleshooting why a client is not getting an IP address. The client sends a DHCPDISCOVER, but no DHCPOFFER is received. What is the most likely cause?

The client's MAC address is not in the DHCP pool

The DHCP server has run out of addresses

The DHCP server is on a different subnet and no relay is configured

The client is using a static IP address

A user reports that typing 'www.example.com' in a browser fails, but accessing the site via its IP address works. You suspect a DNS resolution issue. Which sequence best describes the normal DNS resolution process that the user's computer would follow?

Query the authoritative server directly, then the TLD server, then the root server

Send a query to the root server first, then the TLD server, then the authoritative server, all directly from the client

Check local cache, then query the configured recursive resolver, which queries root, TLD, and authoritative servers as needed

Broadcast a DNS query to all hosts on the local subnet to find the authoritative server

CiscoCertified Network Associate (CCNA)

Domain 4Objective 3

4.3 Explain the Role of DHCP and DNS Within the Network 200-301 Practice Questions (Page 1)

Part of the IP Services domain, which accounts for 10% of the 200-301 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~5–8 in this domain), expect 1–1 from this objective — we provide 39 practice questions to prepare you well beyond it. (estimate)

39questions here

8free pages

9concepts

10%of the exam

Questions 1–5

1expert · hard
A DHCP server is configured to update DNS records for clients. A client with hostname 'pc-1' receives a new IP address, but the DNS A record still points to the old IP. Which configuration is most likely preventing the DNS update?
Select an answer first
2application · easy
A user reports that they can access 'www.example.com' but not 'mail.example.com'. Both hostnames are in the same DNS zone. Which DNS record type is most likely misconfigured for 'mail.example.com'?
Select an answer first
3application · medium
You are troubleshooting a mail delivery issue. Users can send and receive email internally, but external senders report that messages to your domain are rejected. Your mail server's IP address is correct in the MX record. Which DNS record type should you verify to ensure external mail servers can find your mail server?
Select an answer first
4application · medium
A network administrator is troubleshooting why a client is not getting an IP address. The client sends a DHCPDISCOVER, but no DHCPOFFER is received. What is the most likely cause?
Select an answer first
5application · medium
A user reports that typing 'www.example.com' in a browser fails, but accessing the site via its IP address works. You suspect a DNS resolution issue. Which sequence best describes the normal DNS resolution process that the user's computer would follow?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to 200-301

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Cisco. “200-301” is a trademark of its owner, used for identification only.

4.3 Explain the Role of DHCP and DNS Within the Network 200-301 Practice Questions (Page 1)

Questions 1–5

A DHCP server is configured to update DNS records for clients. A client with hostname 'pc-1' receives a new IP address, but the DNS A record still points to the old IP. Which configuration is most likely preventing the DNS update?

A user reports that they can access 'www.example.com' but not 'mail.example.com'. Both hostnames are in the same DNS zone. Which DNS record type is most likely misconfigured for 'mail.example.com'?

A network administrator is troubleshooting why a client is not getting an IP address. The client sends a DHCPDISCOVER, but no DHCPOFFER is received. What is the most likely cause?

A user reports that typing 'www.example.com' in a browser fails, but accessing the site via its IP address works. You suspect a DNS resolution issue. Which sequence best describes the normal DNS resolution process that the user's computer would follow?

Keep studying — IP Services