What is the difference between a DNS domain and a DNS zone?
What will be an ideal response?
A zone is a contiguous portion of the DNS namespace. It contains a series of records stored on a DNS server. Each zone is anchored at a specific domain node. However, zones are not domains. A DNS domain is a branch of the namespace, whereas a zone is a portion of the DNS namespace generally stored in a file, and can contain multiple domains. A domain can be subdivided into several partitions, and each partition, or zone, can be controlled by a separate DNS server. Using the zone, the DNS server answers queries about hosts in its zone, and is authoritative for that zone.
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Contrast a traditional Web application running on a single computer versus a Web application hosted in a public cloud.
What will be an ideal response?
Suppose that sum and num are int variables and sum = 5 and num = 10. After the statement sum += num executes, ____.
A. sum = 0 B. sum = 5 C. sum = 10 D. sum = 15
A slicer has a window with a button for each item in a field.
Answer the following statement true (T) or false (F)
Which of the following is not true about CSMA/CD?
a. The acronym refers to Carrier Sense Multiple Access with Collision Detection b. It is used in token ring protocol LANs c. It is a contention-based media access control technique d. When a collision has occurred, the computers that wish to transmit wait a random amount of time after a colliding message before attempting to retransmit e. Computers on the circuit 'listen' before transmitting