Question 1

You want to implement VLSM for a Class C address with a point-to-point serial link. Which of the following subnet masks is most efficient?&#10;A)255.255.255.0&#10;B)255.255.255.128&#10;C)255.255.255.192&#10;D)255.255.255.252

Accepted Answer

Only 2 IP addresses are required for a single point-to-point link, one for the serial interface of the router at each end. Using 255.255.255.252 as the subnet mask is often used for these types of links, as no IP addresses are wasted.

Question 2

Which of the following commands will configure a default route on a router?&#10;A)router(config)# ip route 0.0.0.0 0.0.0.0 10.1.1.1&#10;B)router(config)# ip route 0.0.0.0 10.1.1.0 10.1.1.1&#10;C)router(config)# ip default-route 10.1.1.0&#10;D)router(config)# ip default-gateway 10.1.1.0

Accepted Answer

A default route is the network route used by a router when no other known route exists for a given IP packet's destination address. All the packets for destinations not known by the router's routing table are sent to the default route. To configure a default route to be an IP address x, the configuration should be IP route 0.0.0.0 0.0.0.0 x.

Question 3

Which of the following is an IP range reserved for private networks?&#10;A)196.0.0.0 to 196.31.255.255&#10;B)10.0.0.0 to 10.255.255.255&#10;C)11.0.0.0 to 11.31.255.255&#10;D)172.0.0.0 to 173.30.255.255

Accepted Answer

Private IP addresses are private if they are not allocated to a specific organization. Private IP address spaces were originally defined in efforts to delay IPv4 address exhaustion. These addresses are common in home and office LANs, as globally-routable addresses are scarce and expensive to obtain.

Question 4

What should you do to check your local TCP/IP connection?&#10;A)Ping 10.10.10.10&#10;B)Ping 127.0.0.1&#10;C)Ping 127.0.0.0&#10;D)Ping 255.255.255.255

Accepted Answer

This is known as the loopback test. A successful ping request to 127.0.0.1 will verify that a computer's network interface card, its drivers, and the operating system's TCP/IP implementation are all functioning correctly.

Question 5

Which of the following 802.11 standards operates in the 2.4 GHz range at a transmission speed of 54 Mbps?&#10;A)802.11g&#10;B)802.11a&#10;C)802.11b&#10;D)802.11c

Accepted Answer

802.11a operates in the 5 GHz band with a maximum net data rate of 54 Mbit/s. 802.11b has a maximum raw data rate of 11 Mbit/s and operates at 2.4 Ghz. 802.11c standard is not a widely-used standard and is used to bridge 802.11d with other standards.

Question 6

Which of the following IEEE standards is associated with VLAN trunking?&#10;A)802.1V&#10;B)802.1L&#10;C)802.3&#10;D)802.1Q

Accepted Answer

VLAN Trunking Protocol (VTP) is a Cisco proprietary Layer 2 messaging protocol that manages the addition, deletion, and renaming of Virtual Local Area Networks (VLAN) on a network-wide basis. IEEE 802.1Q, or VLAN Tagging, is networking that allows multiple bridged networks to transparently share the same physical network link without leakage of information between networks.

Deck 1: Advanced Networking Administrator (CCNA)