Describe Dynamic DNS on the Web.
What will be an ideal response?
High-speed connections now enable home computers to run as web and file servers, and enable remote connections to it. Problems exist with home or office router-assigned DNS names and IP addresses, since they may frequently change due to DHCP. Dynamic DNS maps a home or office router to a domain name. If the router's external IP address changes, it notifies the dynamic DNS service and makes the change. This allows a home or office network to be contacted via domain name regardless of IP address changes.
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By default, the ping command sends an Echo Request every second until you press Ctrl+C.
Answer the following statement true (T) or false (F)
Users log on to the MMOG game server whenever they wish, using ____ software running on their home computer or laptop.
A. client B. server C. servlet D. hosting
Given the declaration double r;, which of the following statements is invalid?
a. r = 326.75; b. r = 9.4632e15; c. r = 9.4632E15; d. r = 2.9X106;
Explain what a metacharacter is, and detail the significance of the $ metacharacter.
What will be an ideal response?