What OC level is primarily used as a regional ISP backbone, and occasionally by very large hospitals, universities, or other major enterprises?
a. OC-3
b. OC-12
c. OC-48
d. OC-96
ANSWER: c
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What is the name for the system of hardware and software that blocks unauthorized users inside and outside the organization from entering?
A) Backbone B) Choke C) Firewall D)Gate E) Register
Several users are reporting that they are unable to connect to the network. After further investigation, the network administrator notices that a newly configured Layer 2 device lost its configuration. Which of the following MOST likely caused the issue?
A. Wrong default gateway B. Wrong DNS C. Switching loop D. Power failure
The ________ contains I/O protocols that are mapped on to the transport layer.
A. cable B. application C. common transport D. physical
Jolene is responsible for customizing computer desktops for users in her company. Jolene is working with a coworker to determine how to set up her desktop. Jolene chooses the _____ from the Ease of Access Center to help her coworker.
A. Quick Access to common tools box B. Get recommendations to make your computer easier to use link C. Explore all settings section D. Windows Themes