Match the following devices with the correct description.
A. Switch 1. Operates at the physical layer and
extends the cable as if it is a single
cable.
B. Router 2. Operates at the physical layer and
connects all connections into one
device or concentrator.
C. Repeater 3. Operates at the network layer and
can filter both hardware and network
addresses.
D. Hub 4. Works at the Data-Link layer and
transmits a digital signal only to the
specific port where the destination
MAC address is located.
What are three advantages of using fiber? A. Security B. Eliminate RFI and EMI C. Low cost D. High speed
OSPF supports priority routing for which TCP/IP feature? A. PA B. TCP C. IP D. SNA
Our company order a cisco ws-c3750x-48t-s(here i bought from http://www.3anetwork.com/cisco-ws-c3750x-48t-s-price_p104.html), As for the switch, in addition to the port module and optical module can be extended, what else module can also be extended?
Which router would you choose for your design? A. 1600 B. 1700 C. 3600 D. 3640 E. 7200
Which two statements correctly identify considerations to take into account when deciding on campus QoS Design elements ?
The following are the four steps in establishing an X.25 virtual circuit. Place them in the correct order. A. The PSE (Packet Switch Exchange) passes the packet to the next remote DCE B. The local DCE packet binder sends packet to the closest PSE (Packet Switch Exchange) C. The source DTE sends packet to the local DCE D. The remote DCE examines the packet header of destination DTE
Which of the following three sets of IP addresses and subnet masks are private IP addresses? A. 10.0.0.0 255.0.0.0 B. 172.16.0.0 255.255.0.0 C. 172.16.0.0 255.240.0.0 D. 192.168.0.0 255.255.0.0
What is the standard ethernet cabling specification? (not IEEE 802.3) A. STP B. Coax (thin) C. Coax (thick) D. UTP
When are SNMP traps sent? A. When the SNMP manager wants to perform remote configuration on a networking device B. When an SNMP agent wants to inform the SNMP manager about a change of state on the networking device C. When the SNMP manager wants to access large chunks of data D. When the NMS wants to share trap information
What is the second step when creating a prototype? A. Develop a test plan B. Review the customer requirements C. Investigate what the competition will be proposing D. Define how big the prototype will be
Match the following services with the correct descriptions: A. BRI 1. Provides two 64 Kbps B channels B. PRI 2. Provides 23 or 30 B channels 3. Provides one 16 Kbps D channel 4. Provides one 64 Kbps D channel 5. Provides a total bit rate of 2.048 Mbps in Europe and Australia 6. Provides a total bit rate of 144 Kbps 7. Provides a total bit rate of 1.544 Kbps in North America and Japan
Which two LAN switching features apply to store-and-forward switches? A. CRC B. Frame length C. Source address D. Collision Windows