ISDN is referenced by a suite of ITU-T (International
Telecommunication Union Telecommunication Standardization
Sector) standards encompassing what three layers of the OSI
reference model?
A. Physical
B. Data Link (LAPD)
C. Data Link (RMON)
D. Network (Q.930 and Q.931)
Answer / guest
Answer: A, B, and D
ISDN is referenced by a suite of ITU-T (International
Telecommunication Union Telecommunication Standardization
Sector) standards encompassing the Physical, Data-Link
(LAPD), and Network (Q.930 and Q.931) layers of the OSI
reference model.
| Is This Answer Correct ? | 1 Yes | 0 No |
What should be looked at first to determine if a customer should switch from a hub environment to a switched environment? A. Investigate the number of broadcasts B. Investigate the number of collisions C. Determine what routing loops are present D. Determine which switching type is being used by the hubs
Which condition does not create LAN media problems? A. Protocol doesn?t scale well B. Long wait for the token C. Excessive collisions D. Too many devices
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
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?
What are two services that the OSPF Hello protocol provides? A. It discovers neighbor routers B. It gets routes from neighbors during startup C. It helps elect a designated router D. It allows administrator to test for connectivity between two devices
What would you include in your prototype design for this particular case study?
How can I release the restriction of CISCO2811C/K9? 10M optical fiber, Speed limit of 125kb / s, made by last network administrator, how can I release the restriction? Please tell me the detail, thanks! Cisco configuration: CISCO2811C/K9 ! ! ! ! ! ! ! interface FastEthernet0/0 description WANpork ip address x.x.x.x 255.255.255.248 ip access-group 110 in no ip proxy-arp ip verify unicast reverse-path ip nat outside ip virtual-reassembly duplex auto speed auto ! interface FastEthernet0/1 description LANpork ip address 192.168.x.x 255.255.255.0 ip access-group 101 in no ip proxy-arp ip verify unicast reverse-path ip nat inside ip virtual-reassembly rate-limit output 1000000 1000000 1000000 conform-action transmit exceed-action drop duplex auto speed auto !
What AppleTalk protocol permits AppleTalk workstations to share files across a network?
When is the route to a node determined in an SRB (Source Route Bridging) Token Ring network? A. Before any data is transmitted B. After the data is transmitted C. During the transmission of data D. After the first frame is transmitted
How is data transmitted in a Token Ring network? A. The node calls for a token, appends the data, modifies a bit in the frame, then sends the token B. The node waits for the token, gains possession of it, appends the data, modifies a bit in the frame, then sends the token C. The node transmits the data whenever it wants to D. The active monitor must first grant permission for the node to transmit data. After it receives permission, it sends the data
What happens to performance if the maximum MTU (Maximum Transmission Unit) size is used? A. Performance increases B. Performance decreases C. Performance stays the same D. Performance has nothing to do with the MTU
Client traffic is being bridged trough LAN interfaces on two WLCs.Which roaming option will Keep them on the same IP Subnet ?