98-366 Online Practice Questions and Answers

Correct Answer:

Correct Answer:

Correct Answer: A

Dynamic Routing, also called adaptive routing, describes the capability of a system, through which routes are characterized by their destination, to alter the path that the route takes through the system in response to a change in conditions. The adaptation is intended to allow as many routes as possible to remain valid (that is, have destinations that can be reached) in response to the change.

Correct Answer: B

nslookup is a network administration command-line tool available for many computer operating systems for querying the Domain Name System (DNS) to obtain domain name or IP address mapping or for any other specific DNS record.

Correct Answer: B

SMTP by default uses TCP port 25.

Correct Answer: A

Correct Answer: D

VPN is a network that is constructed by using public wires -- usually the Internet -- to connect to a private network, such as a company's internal network.

Correct Answer: B

FTP is an application layer protocol.

Correct Answer: B

Correct Answer: A

An Ethernet crossover cable is a type of Ethernet cable used to connect computing devices together directly. Normal straight through cables were used to connect from a host network interface controller (a computer or similar device) to a network switch, hub or router.

Correct Answer: B

Incorrect:

The private address space specified in RFC 1918 is defined by the following three address blocks:

not D: 192.168.0.0/16

The 192.168.0.0/16 private network can be interpreted either as a block of 256 class C network IDs or as a 16-bit assignable address space (16 host bits) that can be used for any subnetting scheme within the private organization. The

192.168.0.0/16 private network allows the following range of valid IP addresses: 192.168.0.1 to 192.168.255.254.

Not A:

10.0.0.0/8

The 10.0.0.0/8 private network is a class A network ID that allows the following range of valid IP addresses: 10.0.0.1 to 10.255.255.254. The 10.0.0.0/8 private network has 24 host bits that can be used for any subnetting scheme within the

private organization.

Not C:

172.16.0.0/12

The 172.16.0.0/12 private network can be interpreted either as a block of 16 class B network IDs or as a 20-bit assignable address space (20 host bits) that can be used for any subnetting scheme within the private organization. The

172.16.0.0/12 private network allows the following range of valid IP addresses: 172.16.0.1 to 172.31.255.254.

Reference: Technet, Public and Private Addresses

Correct Answer: A

T3 lines are a common aggregation of 28 T1 circuits that yields 44.736 Mbps total network bandwidth . Besides being used for long-distance traffic, T3 lines are also often used to build the core of a business network at its headquarters

Correct Answer: BD

IPSEC (Internet Protocol Security) is a security protocol that provides encryption and authentication over the Internet. IPSEC supports network-level data integrity, data confidentiality, data origin authentication, and replay protection.

Correct Answer: BD

Correct Answer: D

Because 802.11a and 802.11b utilize different frequencies, the two technologies are incompatible with each other.

A huge problem with 802.11a is that it's not directly compatible with 802.11b or 802.11g networks. In other words, a user equipped with an 802.11b or 802.11g radio card will not be able to interface directly to an 802.11a access point.

Reference: Making the Choice: 802.11a or 802.11g