Which of the following communication technologies is used by video conferencing systems to synchronize
video streams, and reduce bandwidth, sent by a central location to subscribed devices?

A technician installs a new piece of hardware and now needs to add the device to the network management
tool database. However, when adding the device to the tool using SNMP credentials, the tool cannot
successfully interpret the results. Which of the following would need to be added to the network management
tool to allow it to interpret the new device and control it using SNMP?

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?