From REM1 Flashcards
Convert decimal 239 to Hex.
EF
The broadcast MAC address (in hex notation) is:
FF:FF:FF:FF:FF:FF
What is the range for Class B private IP addresses?
172.16.0.0 to 172.31.255.255
In Ethernet, a ____ is an alternating 1,0 pattern that provides a 5MHz clock at the start of each packet, which allows the receiving devices to lock the incoming bit stream.
Preamble
What is the protocol number for L2TP?
115
Enter the last valid host on the network that the host 10.90.42.113 255.255.240.0 is a part of.
10.90.47.254
Numbers below 1024 are considered well-known port numbers and are defined in RFC _____.
1700
Routers can use _____ lists, created by an administrator, to control security on the types of packets that are allowed to enter or exit an interface.
Access Control
In computer networking, a ________ is a type of group communication where data transmission is addressed to a group of destination computers simultaneously.
Multicast
Routers, by default, break up _______ domains.
Broadcast
TFTP is a simple protocol for transferring files, implemented on top of the UDP/IP protocols using well-known port number ________.
69
The configuration register value to turn on bit 6 in Cisco routers is ________.
0x2142
Enter the first valid host on the network that the host 10.163.190.190/28 is a part of.
10.163.190.177
During router boot up, if a startup-config file is in NVRAM, the router will copy this file and place it in RAM and call it the ________ file.
Running-config
In Ethernet, the packet sent down to the Data Link layer from the Network layer, the size can vary from ________ bytes to ________ bytes.
64, 1518
Breaking up the subnet into subnets with different subnet masks is ________, a computer networking technology.
Variable Length Subnet Masking (VLSM)
A company would like to configure new switches on the network for employees to have a change in IP network information. What port number would you configure to allow new feeds to pass through?
Port 67
When the router is turned on, this is used to save the running configuration file.
NVRAM
he third way to connect to a Cisco router is in-band, through the program ________.
Telnet
RFC ________ is an annex to ICMP, which affords hosts extended capability in discovering routes to gateways.
1256
Enter the broadcast address for the network 10.152.64.0/255.255.248.0.
10.152.71.255
The address used by applications and hosts to send information to all nodes on a network is called the ________ address.
- Answer: Broadcast
Broadcast
________ is a set of technologies that work on a network to guarantee its ability to dependably run high-priority applications and traffic under limited network capacity.
Quality of Service (QoS)
A routing ________ is a unit calculated by a routing algorithm for selecting or rejecting a routing path for transferring data/traffic.
Metric
Access to the IOS command line is called an ________ session.
EXEC
A ________ is the basic, indispensable part of an operating system that allocates resources and manages things such as low-level hardware interfaces and security.
Kernel
Most widely implemented Fast Ethernet standard. Uses Cat 5 UTP cable or STP cabling. 100 Mbps transmission with total segment length of 100 meters.
100BASE-TX
________ is the field at the end of the frame that’s used to store the CRC.
Frame Check Sequence (FCS)
The router uses something called a serial interface for WAN connections, specifically, a ________ physical interface on a Cisco router.
Serial
What is CIDR notation used for in networking?
To define the subnet mask
