Class B addresses always has the first bit set to 1 and their second bit set to 0. Since Class B addresses have a 16-bit network mask, the use of a leading 10 bit-pattern leaves 14 bits for the network portion of the address, allowing for a maximum of 16,384 networks. Class C addresses have their first two bits set to 1 and their third bit set to 0. Since Class C addresses have a 24-bit network mask, this leaves 21 bits for the network portion of the address, allowing for a maximum of 2,097,152 networks. Class d is used for multicasting, hardly ever used.
Dedicated digital circuits 3. c. Routers use Layer 3 and ignore Layers 1 and 2. d. Routers discard old data-link headers and insert new data-link headers as part of their logic, which treats each interface’s lower-layer details as independent from each other. 4. b. As a transport service to deliver IP packets to the next IP router 5. b. Star 6. c. 64 Kbps, 1.544 Mbps, and any speed in between d. No literal distance limitation 7. a. A patch cable with RJ-48 8. c. The switches map the T1 customer lines to one of 28 different frequencies in the T3 trunks.
If network 172.16.0.0/16 is subnetted by borrowing three bits from the host portion, eight (23) subnets are obtained. The table below is an example showing the subnets obtained by subnetting the address 172.16.0.0, the resulting subnet mask, the corresponding broadcast addresses, and the range of valid host addresses. Subnet Address | Subnet Mask | Broadcast Address | Valid Host Range | 172.16.0.0 | 255.255.224.0 | 172.16.31.255 | 172.16.0.1 to 172.16.31.254 | 172.16.32.0 | 255.255.224.0 | 172.16.63.255 | 172.16.32.1 to 172.16.63.254
Assuming that 802.11n uses the narrower 20-MHz channel and a single stream, which of the following answers matches a particular standard to its maximum bit rate? a. 802.11g: 54 Mbps 3. An enterprise campus LAN uses wired UTP Ethernet and wireless 802.11 LANs at the edge of the LAN. A network engineer uses a WLAN testing tool to view the frames moving through the WLAN, and he notes the speeds of the various frames in a single WLAN that uses a single access point.
15 Minutes Class ID:_____________ 1. In IP header, the purpose of Flag field is d. To control fragmentation of packets during transmission. e. To control packet sequencing. f. To identify the upper layer protocols being used 2. Do you think ICMP can identify routers on networks.
Jennifer Schneider – NT 1230 – Client-Server Networking – Unit 3; Assignment 1 IPv6 Addressing 1.) Research the following organizations and explain their involvement with the Internet Public IP Addresses a. American Registry for Internet Numbers: Allocates, transfers and records maintenance of IP addresses as well as reverse DSN. b. Internet Assigned Numbers Authority: Allocates IP addresses from the pools of unallocated addresses to the RIRs according to their needs as described by global policy and to document protocol c. Asia-Pacific Network Information Center: Distributes and maintains IPv6 addresses 2.) Approximately how many IPv4 addresses are possible? There are approximately 4.3 billion IPv4 addresses available.
You can easily tell if this is the problem by comparing the size of the DHCP address scope to the number of devices on your network that request IP addresses from the DHCP server. But since only some of the workstations have got addresses the problem might be the DHCP server. Start off by doing some ping tests to verify that the DHCP server is able to communicate across the network. If the DHCP server is able to communicate with other computers on the network, then I recommend verifying that the DHCP server has an IP address that is compatible with the scope that the server is configured to assign addresses from. The server itself has to be assigned a static address in the same subnet range, such as 192.168.0.199.