Network+ Chapter 8
Which hexadecimal block in an IPv6 address is used for the Subnet ID? The first one The fourth one The third one The eighth one
The fourth one
What is the formula for determining the number of possible hosts on a network? 2h = Z 2n = Y 2h - 2 = Z 2n - 2 = Y
2h - 2 = Z
Which IEEE standard determines how VLANs work on a network? 802.11 802.1Q 802.3af 802.1x
802.1Q
How many bits of a Class A IP address are used for host information? 8 bits 32 bits 24 bits 16 bits
24
While designing your network's VLAN topology, your team has decided to use a centrally managed DHCP server rather than creating a separate DHCP server for each VLAN. What software will you need to make the central DHCP server accessible across VLANs? Hypervisor DHCP relay agent Virtual router DHCP server
DHCP relay agent
You are configuring two switches of different vendors such that they connect to each other via a single link that will carry multiple VLANs. What kind of trunk link must you configure for the two devices to successfully function in this manner? A Vendor Neutral Trunk (VNT) An IEEE 802.1q trunk An ISL trunk A Link Aggregation (LAG) protocol trunk
IEEE 802.1q is the networking standard for trunk links that supports the transmission of multiple VLANs over the same link. It is a trunking standard used by all vendors to allow for inter-vendor interoperability
What do well-chosen subnets accomplish? Routing efficiency is decreased by ensuring IP address spaces are not mathematically related. IP address spaces overlap for easier management. Network documentation is easier to manage. Problems affect the entire network, making them more difficult to pin down.
Network documentation is easier to manage.
Which of the following is not a good reason to segment a network? To narrow down the location of problems on a network To increase the number of networking devices on a network To reduce the demand on bandwidth To limit access to broadcast domains
To increase the number of networking devices on a network
Which port mode on a switch enables that port to manage traffic for multiple VLANs? Ethernet Console Trunk Access
trunk
Your colleague has configured a trunk between two switches. You notice that the configuration on each end is inconsistent. On one of the switch, your colleague has configured VLAN 10 and on the second switch, no VLAN is configured. With this configuration, which problem are you likely to face? Bottleneck Network LED status mismatch Duplex and speed mismatch Optical attenuation VLAN mismatch
vlan mistmatch
Which formulas can be used to calculate the magic number? Choose two. 256 - the interesting octet 2h - 2 2n 2h
256 - the interesting octet 2h
What is the least number of bits you would need to borrow from the network portion of a Class B subnet mask to get at least 130 hosts per subnet? Eight Ten Nine None
8
When connecting a trunk link between two switches, it is important to configure the allowed VLANs correctly on either end. If this is not done correctly, which of the following can occur? A bottleneck A VLAN mismatch Incorrect pin-out A duplex mismatch Transceiver mismatch
A VLAN mismatch