CCENT 100-105 Misc Flashcards
TCP Flow Control is?
A window designating the amount of data which can be received at once
A TCP window designating the amount of data which can be received at once is?
Flow Control
What equipment takes control of access points and their configurations?
Wireless Controllers
Wireless Controllers do what?
takes control of access points and their configurations
Protocol used to give wireless controllers control of access points is?
CAPWAP
Protocol CAPWAP is used to do?
control access points
CAPWAP stands for?
Control and Provisioning of Wireless Access Points
Devices connected to a single switch make up what?
Access Layer
A second layer of switches, attached to Access Layers, is?
Distribution Layer
A third layer of switches, attached to Distribution Layer, is?
Core Layer
3 pieces of equipment needed to run a leased line?
router
serial interface card
CSU/DSU (Channel Service Unit/Data Service Unit)
CSU stands for?
Channel Service Unit
DSU stands for?
Data Service Unit
DTE stands for?
Data Terminal Equipment
DCE stands for?
Data Communications Equipment
CPE stands for?
Customer Premises Equipment
Leased line cables with male connectors are which type?
DTA (Data Terminal Equipment)
Leased line cables with female connectors are which type?
DCE (Data Communications Equipment)
Which leased line cable type is equivalent to a crossover cable?
DCE (Data Communications Equipment)
Leased line WAN cables use which RJ connector?
48
Cisco hardware flash memory does what?
stores IOS images and boot files
Cisco hardware NVRAM memory does what?
startup configuration files
Which Cisco hardware memory stores IOS images and boot files?
flash memory
Which Cisco hardware memory stores startup configuration files?
NVRAM memory
2 types of Cisco hardware configuration files?
startup-config
running-config
When the last octet of an IPv4 subnet mask is 0, for BROADCAST, it always equals ___ in the actual IP address?
255
What is the last IP address in a subnet?
subnet broadcast address
The subnet broadcast address is in which position in the subnet?
last IP address
255.255.255.255 is and does?
local broadcast address
broadcast to all network devices
Network broadcast address does what?
reaches all subnets
IPv6 unique local unicast addresses always start with?
FD
An IPv6 address, starting with FD, is always what type?
local unicast address
What is the typical prefix for an IPv6 network?
/64
Assigning an IPv6 IP address (EUI) to a device can be done by adding ___ in the middle of its MAC address?
FF:FE
IPv6 anycast addresses do?
implement a service
TCP protocol works in __________ numbers.
sequence
Which are Cisco’s three steps of troubleshooting?
Problem isolation and documentation
Resolve or escalate
Verify and monitor
Which mode does a router need to be in to set an IP address?
Router(config-if)#
VLSM stands for?
Variable-Length Subnet Masking
Which are the four main IPv6 address types?
Global unicast
Unique local
Link local
Multicast
NDP stands for?
Neighbor Discovery Protocol
Which type of IPv6 address is used for protocols such as NDP?
Link local
Which is the first of the two steps needed in order to assign an IPv6 address to a device?
Take its existing MAC address, and add FF:FE to the middle of it
Which multicast address is associated with RIPv2 protocol?
224.0.0.9
Which multicast address is associated with EIGRP protocol?
224.0.0.10
Which 2 multicast addresses are associated with OSPF protocol?
- 0.0.5
224. 0.0.6
How to determine the amount of subnets available in CIDR?
2 to the power of borrowed bits
A packet is dropped when what kind of gateway is not present?
gateway of last resort
What 3 commands configure RIPv2?
router(config)#router rip
router(config-router)#version 2
router(config-router)#network address
What enables routing between VLANs?
Inter-VLAN routing
What command configures inter-VLAN routing and the 3 steps?
Encapsulation Command:
interface *list wired/wireless interface (ex:
GigabitEthernet0/0.110)*
encapsulation dot1Q 110
ip address 192.168.110.1 255.255.255.0The 802.1Q networking standard does?
encapsulation in VLANs
What command creates default gateway/gateway of last resort?
IP route 0.0.0.0 0.0.0.0 (enter gateway to use, ex: 10.10.10.1)
Command enables IPv6 globally?
ipv6 unicast-routing
Command creates static route?
ipv6 route command
Command enables IPv6 processing on an interface directly?
ipv6 enable command
Command assigns an IPv6 address under an interface?
ipv6 address command
Internet Protocol operates at which TCI/IP layer?
Layer 3
Show ip route line [__/_______] is what 2 parts?
Administrative Distance
Metric
Administrative Distance is?
measure of trustworthiness for source of routing info
Show ip route EIGRP routing protocol default Administrative Distance is listed by what letter and is what value?
D
90
The IPv6 equivalent of IPv4 private addressing is?
unique local addresses
IPv6 ULA stands for?
Unique Local Address
2 types of Cisco configuration files?
running
startup
Where are startup configuration files stored?
NVRAM
3 parts of //_
device/module
slot
port
How many VTY lines do Cisco devices support?
5
LLDP stands for?
Link Layer Discovery Protocol
The alternative to CDP is?
LLDP
RFC corresponds with what number?
1918
What two things does RIPv2 support?
multicast
encryption
Distance vector takes what path?
least hops
Link state takes what path?
shortest distance
What piece of data gets flooded?
frames
VTY command text stands for?
Virtual terminal lines
What protocol does IPv4 use to learn MAC addresses?
ARP (Address Resolution Protocol)
What protocol does IPv6 use to learn MAC addresses?
NDP (Neighbor Discovery Protocol)
All IPv6 multicast address types start with?
FF02
FFO2::1 is multicast for all ___/___ on an IPv6 link?
interfaces/nodes
FF02::2 is multicast for all ___s on an IPv6 link?
routers
IPv6 default route is?
::0
IPv6 link local address is?
FE80
What designates a host is being referenced, in IPv6?
/128
The term, metrics, refers to the number of routers between a router and a __________.
subnet
Which are the three types of inter-VLAN routing?
Use a layer 3 switch
One router for every VLAN
A router with a VLAN trunk connected to a switch
Which two pieces of information does a user need before they can create a link-local IPv6 route?
The interface that will connect to the subnet
The link-local address on the router being connected to
What is the main reason for making an interface passive in RIPv2?
So updates will not be sent
Which command advertises default routes on RIPv2?
default-information originate
What command finds a router’s UDI?
show license udi
What command finds a destination (ex:TFTP server) IP address?
show archive
What command finds all directly connected devices which are using LLDP protocol?
show lldp neighbors
NAT overload is also known as?
Port Address Translation (PAT)
PAT does what?
public IP address represents all of one’s private IP addresses
ACLs are based on?
wildcard masks
NTP uses what port?
123
NTP stands for?
Network Time Protocol
IOS has how many bytes of system flash allocated?
65536K
Command verifying IOS integrity?
verify /md5 flash:
Which command shows uptime?
show version
Command showing configuration register value?
show version
Command showing space available?
show version
SCP stands for?
Secure Copy Protocol
Command showing SCP enabled?
show running-config
What does SCP do?
backs up IOS
Command showig vlans?
show vlan
What 2 commands would place VLAN2 onto int fa0/1?
Sw_C(config-if)#interface fa0/1
Sw-C(config-if)#switchport access vlan 2
3 commands verifying interface fa0/4 and VLAN 2 association?
Switch#show vlan id 2
Switch#show interface fa0/4 switchport
Switch#show vlan brief
Command to log event severity at 6 or lower on 3rd party server with IP of 192.168.1.100
configure terminal
logging 192.168.1.100
service timestamps log datetime
logging trap 6
What protocol uses VTY ports?
Telnet
Commands logging alert log messages and lower to syslog server 192.168.1.10
logging traps 1 (the 1 stands for “alert” level)
logging host 192.168.1.10
2 steps to bypass a router password?
boot to “rommon”
change configuration register setting to 0x2142
What is the IPv6 equivalent of DHCP without a server?
SLAAC
What allows IPv4 and IPv6 on the same network?
dual stack
Type of switching that immediately forwards frame after reading destination address.
fast forward
Switch to switch connection is?
trunk
Device to switch connection is?
access
Command for Administrative Trunking Encapsulation?
dot1q
Which command will exclude the first 25 assignable IP addresses in a 192.168.1.0/24 network from a DHCP pool?
ip dhcp excluded-address 192.168.0.1 192.168.0.25
Which command is used to start the setup of a DHCP pool?
ip dhcp pool
Which command will set an IP address range for a DHCP server to include the addresses of 192.168.0.21 to 192.168.0.254?
network 192.168.0.0 255.255.255.0
Which command sets up a router as a DHCP relay agent?
ip helper-address
Which command sets a default gateway in a DHCP pool?
default-router
Which command is entered before the command to change the DNS server address within a DHCP pool?
ip dhcp pool
Which command adds the NTP client role to a Cisco device?
ntp server
Router1 has been set up as an NTP client. The same router needs to relay the NTP information from the NTP server (Router2) to the router’s connected clients. Which command needs to be entered on Router1 to fulfill this need?
ntp master
Which command accurately denies a class C subnet with a subnet ID of 10.1.34.0 access to a router on an ACL with a number of 12?
access-list 12 deny 10.1.34.0 0.0.0.255
An administrator wants to make sure devices not denied using an ACL can access a router. Which command should be used at the end of the ACL?
permit any
A standard ACL with a number of 12 has been configured. Which command will enable the ACL on an interface for inbound connections?
ip access-group 12 in
Which command will show any access groups enabled on interface s0/1?
show running-config int s0/1
Which command will show the access list(s) enabled on interface s0/1?
show ip int s0/1
What is the IPv6 loopback address on a device?
::1
In order to redo the configuration on a router, which command should be used?
reload
