A company is experiencing very slow network speeds of 54Mbps. A technician has been hired to perform an assessment on the existing wireless network. The technician has recommended an 802.11n network infrastructure.
Which of the following allows 802.11n to reach higher speeds? output (MIMO). MIMO uses multiple antennas for transmission and reception.

Multiple students within a networking lab are required to simultaneously access a single switch remotely. The administrator checks and confirms that the switch can be accessed using the console, but currently only one student can log in at a time.
Which of the following should be done to correct this issue? limit is set to one, and we should increase it. maximum sessions limit for virtual terminals.

A technician has finished configuring AAA on a new network device. However, the technician is unable to log into the device with LDAP credentials but is able to do so with a local user account.
Which of the following is the MOST likely reason for the problem? login problems. credentials. A network administrator can then, for example, supply the same credentials to log in to various network devices (for example, routers and switches). RADIUS and TACACS+ are protocols commonly used to communicate with an AAA server.

A technician is configuring a managed switch and needs to enable 802.3af.
Which of the following should the technician enable? receive data.

When two or more links need to pass traffic as if they were one physical link, which of the following would be used to satisfy the requirement? interface, which appears as a single link to a route processor.

Which of the following communication technologies would MOST likely be used to increase bandwidth over an existing fiber optic network by combining multiple signals at different wavelengths? wavelength can support as many as 160 simultaneous transmissions using more than eight active wavelengths per fiber.

A desktop computer is connected to the network and receives an APIPA address but is unable to reach the VLAN gateway of 10.10.100.254. Other PCs in the VLAN subnet are able to reach the Internet.
Which of the following is MOST likely the source of the problem? a DHCP server. One possible source of this problem is that switch port, to which the computer is connected, is misconfigured. The 802.1q protocol is used to configure VLAN trunking on switch ports.

A training class is being held in an auditorium. Hard-wired connections are required for all laptops that will be used. The network technician must add a switch to the room through which the laptops will connect for full network access.
Which of the following must the technician configure on a switch port, for both switches, in order to create this setup? process known as trunking. Trunk ports mark frames with unique identifying tags – either 802.1Q tags or its designated VLAN.

A technician is setting up a new network and wants to create redundant paths through the network.
Which of the following should be implemented to prevent performance degradation? that results from them. Spanning tree also allows a network design to include spare (redundant) links to provide automatic backup paths if an active link fails, without the danger of bridge loops, or the need for manual enabling/disabling of these backup links.

Which of the following protocols must be implemented in order for two switches to share VLAN information? a group of switches (that is, a VTP domain).