Computer Science > EXAM > The Bits and Bytes of Computer Networking: Network Services WK 4 (All)
The Bits and Bytes of Computer Networking: Network Services WK 4
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The Bits and Bytes of Computer Networking: Network Services WK 4 What transport layer protocol does DNS normally use? UDP; While DNS over TCP does exist, UDP is the most common protocol. A DNS TTL d... etermines what? How long a DNS entry is allowed to be cached; TTL stands for Time to Live and determines how long a DNS entry can be cached How many root servers are there? 13; There are 13 root servers. An A Record contains what? IPv4 address; An A record contains an IPv4 address Select all that are true. One domain name can point to one IP; This is a valid DNS setup One domain name can point to many IPs; this is a valid DNS setup. Many domain names can point to the same IP; This is a valid DNS setup. MX stands for ________. Mail exchange; An MX record stores a mail server's IP. A fully qualified domain name can contain how many characters? 255; An FQDN is limited to a total length of 255 characters. What are the four things that all computers need configured in order to operate on a modern network? Check all that apply. An IP address; All computers need these four things configured in order to operate on a modern computer network. a name server; Computers need a name server in order to operate on a network. a subnet mask; All computers need these four things configured in order to operate on a modern computer network. a default gateway; All computers need these four things configured in order to operate on a modern computer network. When using Fixed Allocation DHCP, what's used to determine a computer's IP? [Show More]
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