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Using direct sequence spread spectrum, which three 2.4-GHz channels are used to limit collisions?
- A. 5, 6, 7
- B. 1, 2, 3
- C. 1, 6, 11
- D. 1, 5, 10
How do TCP and UDP differ in the way they guarantee packet delivery?
- A. TCP uses retransmissions, acknowledgment, and parity checks, and UDP uses cyclic redundancy checks only
- B. TCP uses two-dimensional parity checks, checksums, and cyclic redundancy checks, and UDP uses retransmissions only
- C. TCP uses checksum, acknowledgements, and retransmissions, and UDP uses checksums only
- D. TCP uses checksum, parity checks, and retransmissions, and UDP uses acknowledgements only
A wireless administrator has configured a WLAN; however, the clients need access to a less congested 5-GHz network for their voice quality. Which action must be taken to meet the requirement?
- A. enable Band Select
- B. enable DTIM
- C. enable RX-SOP
- D. enable AAA override
DRAG DROP –
Drag and drop the application protocols from the left onto the transport protocols that it uses on the right.
Select and Place:
What is the destination MAC address of a broadcast frame?
- A. 00:00:0c:07:ac:01
- B. ff:ff:ff:ff:ff:ff
- C. 43:2e:08:00:00:0c
- D. 00:00:0c:43:2e:08
- E. 00:00:0c:ff:ff:ff
For what two purposes does the Ethernet protocol use physical addresses?
- A. to uniquely identify devices at Layer 2
- B. to allow communication with devices on a different network
- C. to differentiate a Layer 2 frame from a Layer 3 packet
- D. to establish a priority system to determine which device gets to transmit first
- E. to allow communication between different devices on the same network
- F. to allow detection of a remote device when its physical address is unknown
DRAG DROP –
Drag and drop the networking parameters from the left on to the correct values on the right.
Select and Place:
SSH uses TCP port 22 while SNMP uses UDP port 161 and 162.
Which component of an Ethernet frame is used to notify a host that traffic is coming?
- A. start of frame delimiter
- B. Type field
- C. preamble
- D. Data field
You are configuring your edge routers interface with a public IP address for Internet connectivity. The router needs to obtain the IP address from the service provider dynamically.
Which command is needed on interface FastEthernet 0/0 to accomplish this?
- A. ip default-gateway
- B. ip route
- C. ip default-network
- D. ip address dhcp
- E. ip address dynamic
Which two statements about the purpose of the OSI model are accurate? (Choose two.)
- A. Defines the network functions that occur at each layer
- B. Facilitates an understanding of how information travels throughout a network
- C. Changes in one layer do not impact other layer
- D. Ensures reliable data delivery through its layered approach