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- Installing and Configuring Windows server 2012 (70-410)
51.
Which of the following terms best describes the component that enables DHCP clients
to communicate with DHCP servers on other subnets?
- A.Forwarder
- B.Resolver
- C.Scope
- D.Relay agent
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
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A. Incorrect: A forwarder is a DNS server that accepts recursive queries from
other servers. B. Incorrect: A resolver is a DNS client component. C. Incorrect: A scope is a range of IP addresses that a DHCP server is configured to allocate. D. Correct: A relay agent is a software module that receives DHCP broadcast messages and forwards them to a DHCP server on another subnet. |
52.
Which of the following message types is not used during a successful DHCP address
assignment?
- A.DHCPDISCOVER
- B.DHCPREQUEST
- C.DHCPACK
- D.DHCPINFORM
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
|
A. Incorrect: The DHCP address assignment process begins when the DHCP client
generates DHCPDISCOVER messages and broadcasts them on the local network. B. Incorrect: The client eventually stops broadcasting and signals its acceptance of one of the offered addresses by generating a DHCPREQUEST message. C. Incorrect: When the server offering the accepted IP address receives the DHCPREQUEST message, it transmits a DHCPACK message to the client, acknowledging the completion of the process. D. Correct: The DHCPINFORM message type is not used during an IP address assignment. |
53.
Which of the following DHCP address allocation types is the equivalent of a reservation
in Windows Server 2012 R2?
- A.Dynamic allocation
- B.Automatic allocation
- C.Manual allocation
- D.Hybrid allocation
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
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A. Incorrect: Dynamic allocation is when the DHCP server assigns an IP address to a
client computer from a scope for a specified length of time. B. Incorrect: Automatic allocation is when the DHCP server permanently assigns an IP address to a client computer from a scope. C. Correct: Manual allocation is when the DHCP server permanently assigns a specific IP address to a specific computer on the network. In the Windows Server 2012 R2 DHCP server, manually allocated addresses are called reservations. D. Incorrect: Hybrid is a DHCP infrastructure type, not a type of address allocation. |
54.
Which of the following network components are typically capable of functioning as
DHCP relay agents?
- A.Windows 8.1 computers
- B.Routers
- C.Switches
- D.Windows Server 2012 R2 computers
- Answer & Explanation
- Report
Answer : [B, D]
Explanation :
Explanation :
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A. Incorrect: Windows 8.1 cannot function as a LAN router, and it therefore cannot
function as a DHCP relay agent. B. Correct: Most IP routers have DHCP relay agent capabilities built into them. If the routers connecting your subnets are so equipped, you can use them as relay agents, eliminating the need for a DHCP server on each subnet. C. Incorrect: Switches are data-link layer devices and are designed to communicate with devices on the same subnet. A DHCP relay agent requires access to two subnets. D. Correct: If your routers cannot function as DHCP relay agents, you can use the relay agent capability built into the Windows server operating systems. In Windows Server 2012 R2, the DHCP relay agent capability is built into the Remote Access role. |
55.
Which of the following TCP/IP parameters is typically deployed as a scope option in
DHCP?
- A.DNS Server
- B.Subnet Mask
- C.Lease Duration
- D.Default Gateway
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
|
A. Incorrect: In most cases, all the computers on a network will use the same DNS
server, so it is more convenient to deploy its address once by using a server option
than to deploy it as a scope option on every scope. B. Incorrect: The subnet mask is automatically included with every address lease and therefore does not have to be deployed as a scope option or a server option. C. Incorrect: The lease duration option is automatically included with every address lease and therefore does not have to be deployed as a scope option or a server option. D. Correct: The default gateway must be a router on the same subnet as the IP addresses the DHCP server is allocating. Therefore, the gateway address is different for every scope and must be deployed as a scope option. |
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