If a host has made a Domain Name System (DNS) request, why does it not have to repeat the request the next time it needs the IP address for the same server?
What will be an ideal response?
Every DNS server keeps a list of cached lookups-that is, all the IP addresses it has already resolved-so it won't have to re-resolve an FQDN it has already checked.
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Brute force cracking of a password using conventional methods takes a very long time. This is primarily a ___________ intensive task.
a. Memory b. Storage c. I/O d. Processor
A system of passing exceptions through the chain of calling methods has great advantages because it allows methods to handle exceptions wherever the programmer has decided it is most appropriate.
Answer the following statement true (T) or false (F)
Which of the following tools can be used for banner grabbing?
a. Nslookup b. Nmap c. Netcat d. Nessus
Which of the following routing metrics, administratively assigned to links, affect which routes are chosen?
A. latency B. cost C. MTU D. bandwidth