Which of the following integrity security mechanisms ensures that a sent message has been received intact, by the intended receiver?

A company that was previously running on a wired network is performing office-wide upgrades. A department with older desktop PC’s that do not have wireless capabilities must be migrated to the new network, ensuring that all computers are operating on a single network.
Assuming CAT5e cables are available, which of the following network devices should a network technician use to connect all the devices to the wireless network?

A company is implementing enhanced user authentication for system administrators accessing the company’s confidential servers. Which of the following would be the BEST example of two-factor authentication?

Which of the following default ports is associated with protocols that are connectionless?

A network engineer is conducting an assessment for a customer that wants to implement an 802.11n wireless network.
Before the engineer can estimate the number of WAPs needed, it is important to reference which of the following?

Upon arrival at work, an administrator is informed that network users cannot access the file server. The administrator logs onto the server and sees the updates were automatically installed and the network connection shows limited and no availability.
Which of the following needs to be rolled back?

A network administrator wants to deploy a wireless network in a location that has too much RF interference at 2.4 GHz.
Which of the following standards requires the use of 5 GHz band wireless transmissions? (Select TWO)

A network technician has configured a point-to-point interface on a router, however, once the fiber optic cables have been run, the interface will not come up. The technician has cleaned the fiber connectors and used an optical power meter to confirm that light is passing in both directions without excessive loss.
Which of the following is the MOST likely cause?

A network technician is using telnet to connect to a router on a network that has been compromised. A new user and password has been added to the router with full rights. The technician is concerned that the regularly used administrator account has been compromised.After changing the password on all networking devices, which of the following should the technician perform to prevent the password for the administrator account from being sniffed on the network?

The network administrator is configuring a switch port for a file server with a dual NIC. The file server needs to be configured for redundancy and both ports on the NIC need to be combined for maximum throughput.
Which of the following features on the switch should the network administrator use?