Network+ - Test Two(ver. 1.16.00)

Click on the MOST correct answer


1 What is the reserved loopback IP address that can be used to test the configuration of the local IP device?
128.0.0.1
127.0.0.127
255.255.255.0
127.0.0.1
255.0.0.0
2 Is the IP address 132.10.0.15 valid?
Yes
No
Depends on the subnet mask
3 Is the IP address 192.168.10.0 valid?
Yes
No
Depends on the subnet
4 What is the maximum number of host IDs available on a class C address?
65,534
192
254
126
16,384
5 How many network address are needed when two LANs are connected by routers?
Three
Two
One
Depends on the subnet mask
6 Two devices on a LAN are unable to communicate. What 2 common IP addressing problems should be investigated first?
Duplicate IP addresses have been assigned
IPX has been installed over IP
No WINDS server has been defined on the network
The default gateway is missing or wrong
The cable might be loose
7 What is the default subnet mask for a class B address?
255.0.0.0
255.225.0.0
255.255.255.0
255.252.0.0
255.255.0.0
8 What is the default subnet mask for a class C address?
255.255.225.0
255.255.0.0
255.255.252.0
255.255.255.0
255.0.0.0
9 When is a subnet required?
When more networks are needed
When more hosts are needed
Never
Always
When 2 or more class C address ranges are used
10 How many bits are subnets comprised of?
32
64
16
4
1
11 The process of subnetting can be useful to create additional _________.
Networks
Hosts
PCs
Servers
12 What are the two methods used to assign IP addresses?
Dynamic
ARP Entries
Statically (manually) assigning
Setup disks
Host files
13 What is DHCP used for?
Share route information between routers
Display all statically assigned IP addresses in use
Resolve host names to IP addresses
Dynamically assign IP addresses as needed on a network
Get DNS, default route, and subnet mask information
14 Besides IP addresses, what information can a DHCP server assign?
Default gateway
NetBIOS Name
DNS server
Subnet mask
User name
15 What does a host do first to request a dynamic IP address?
Sends out a broadcast message looking for a DHCP server
Attempts to use a previously assigned IP address
Sends out a broadcast to find out which IP addresses are not currently use
Locates a WINS server on the network to negotiate an IP address lease
Looks for the default gateway address
16 What is the default lease life of a dynamically assigned IP address?
Permanent
For as long as the host is connected to the network
72 hours
36 hours
24 hours
17 How many network segments can a single DHCP server provide services to?
No more than ten
One
Four
Unlimited
Two
18 Describe the basic concept of Name Resolution.
Maps a computer name to a network
Maps a computer name to an MAC address
Maps a computer name to a WINS address
Provides a method of automatically assigning computer names
Provides a method of automatically assigning a computer name and IP address
19 What is the primary protocol used for Name Resolution?
IPX/SPX
NetBEUI
AppleTalk
TCP/IP
NCP
20 Which type of address does ARP resolve?
NetBIOS
Domain
MAC (Hardware)
Gateway
Network
21 What is the first thing ARP does when attempting to resolve a host name?
Sends a broadcast packet
Purges ARP cache
Looks in Hosts file
Locates the DNS Server
Checks ARP cache
22 By default, ARP entries are retained in memory for:
2 minutes unless they have been reused, then they'll be retained up to 10 minutes
36 hours unless they are renewed half way before being purged
For as long as the PC remains connected to the network
5 minutes unless a manual request is made to keep the tables longer
10 minutes or more if cache memory is not full
23 What is the file name that resides locally on a host and contains host names and their IP addresses?
Lookup file
Address file
Host file
ARP file
Names file
24 What name resolution protocol is most commonly used in large environments including the Internet?
Hosts
WINS
NetBIOS
DNS
ARP
25 Name 4 popular Top-Level Domain names:
COM
ORG
NET
USA
EDU