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Last Updated: Jun 24, 2026
IT Exam Items Repository › Category: Network Fundamentals
What are two primary responsibilities of the Ethernet MAC sublayer? (Choose two.)
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What is a function of the data link layer?
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Refer to the exhibit. A network administrator discovers that host A is having trouble with Internet connectivity, but the server farm has full connectivity. In addition, host A has full connectivity to the server farm. What is a possible cause of this problem?
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Which three statements characterize the transport layer protocols? (Choose three.)
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Which characteristics describe fiber optic cable? (Choose two.)
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Which device should be used for enabling a host to communicate with another host on a different network?
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What is the correct order for PDU encapsulation?
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Which communication tool allows real-time collaboration?
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Why are port numbers included in the TCP header of a segment?
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Refer to the exhibit. The network administrator for a small advertising company has chosen to use the 192.168.5.96/27 network for internal LAN addressing. As shown in the exhibit, a static IP address is assigned to the company web server. However, the web server cannot access the Internet. The administrator verifies that local workstations with IP addresses that are assigned by a DHCP server can access the Internet, and the web server is able to ping local workstations. Which component is incorrectly configured?
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What information is added during encapsulation at OSI Layer 3?
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What is the purpose of a default gateway?
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What is true concerning physical and logical topologies?
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Refer to the exhibit. PC1 is unable to access PC2. To troubleshoot this problem, the technician needs to confirm that the next hop interface is operational. Which default gateway address should the technician ping from PC1 to confirm this?​
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Refer to the exhibit. Which term correctly identifies the device type that is included in the area B?
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