Interconnecting Cisco Network Devices Part 1 (ICND1) v2.0 Set 2
How many broadcast domains are present in a network with no router?
1
What is the maximum acceptable delay allowed between two voices packets?
150 ms
What would be the network ID if the IP address is 172.28.23.2, the maximum number of hosts per subnet is 254, and the maximum number of subnets possible is 256?
172.28.23.0
What would be the host IP address range, if the IP address given is 172.28.23.2 and the subnet mask is 255.255.255.192?
172.28.23.1-172.28.23.62 (not counting the broadcast address and network ID)
What is the default CDP hold time?
180 seconds
How many broadcast domains does a 24-port switch create with two VLANs having 12 port assigned to each?
2
How many pins are on an EIA/TIA-232 WAN cable interface?
25
What is the size of the Acknowledgement Number field in a TCP packet header?
32 bits
Why does a switch-based network perform better than a hub-based network?
A switch provides a separate collision domain to each device, reducing collisions. If the cabling and NIC support it, switches also can provide a full duplex connection to hosts.
What are the two components of a security policy?
Acceptable-use policy and incident-handling policy
Which protocol is used to resolve MAC address to IP address mappings?
Address Resolution Protocol (ARP)
What is the first criterion that a router uses to choose the best path if two protocols provide route information for the same destination?
Administrative Distance
Which Cisco network strategy aims at making an organization's business secure by identifying, preventing, and adapting to security threats?
Cisco Self-Defending Network strategy
From an Internet Service Provider (ISP) standpoint, what is the term used for the edge communication equipment at the customer's location that connects the customer to the ISP network?
Customer Premises Equipment (CPE)
Which protocol is used to automate the distribution of IP addresses to clients from a central server?
DHCP Dynamic Host Configuration Protocol
Which two of the four DHCP messages that are exchanged between a host and a DHCP server are broadcast?
DHCPDISCOVER and DHCPREQUEST
With which type of NAT is the translation table populated as the required traffic flows through NAT-enabled devices?
Dynamic NAT
What is the broadcast MAC address for Ethernet as defined by IEEE?
FFFF.FFFF.FFFF
What type(s) of cabling is required for a 250-meter cable run?
Fiber or ThickNet coaxial
Which OSI Layer 2 devices provide software-based switching of LAN traffic?
LAN bridges
At which OSI Layer does the FTP protocol operate?
OSI Layer 7
Which network device would you use to connect two networks on different IP subnets?
Router
What is the term used for the parameters by which a router determines the best path to the destination host?
Routing Metrics
Where does a router store the paths to different networks?
Routing Table
Which TCP port does Post Office Protocol - Version 2 (POP2) use to communicate with other hosts?
TCP port 109
Which Cisco IOS command is used to restore the backup IOS image stored on a TFTP server to the target router?
The copy tftp flash command
Which Cisco IOS command is used to disable the Cisco Discovery Protocol Version 2 (CDPv2) advertisements?
The no cdp advertise-v2 command
Which UDP port is used by the ICMP Echo feature to communicate network connectivity status messages for a target host?
UDP Port 7
What is the term used for IP packets that carry voice signals between two IP phones?
Voice over IP (VoIP)
In general, crossover cables are used between like devices and straightthrough cables between unlike devices. What is the one exception to this rule?
When connecting an Ethernet interface on a router to a computer NIC, a crossover cable is used.
What is the name of one data unit at the OSI network layer?
a Packet
Which type of Ethernet cable is used to connect the 10/100 port on the switch to another switch?
a crossover cable
Which device converts telephonic signals to digital signals and vice versa to enable a computer to connect to the Internet?
a modem
What is the name given to the protocol data unit (PDU) at the transport layer?
a segment
Which uses less packet overhead: voice traffic or data traffic?
data traffic
What command is required to create a password that will be encrypted when it appears in the show run command?
enable secret <password>
What is the third step of the Cisco router boot sequence?
he router locates and loads the IOS
Which mode will a Cisco catalyst switch enter if there is no startup configuration file in the NVRAM?
initial configuration dialogue mode
What is the term used for a type of delay variation that is characteristics of voice traffic?
jitters
Which network device provides filtering for packets based on the transport layer protocol specification?
routers, via the use of extended access control lists
What are the three modes of VLAN Trunk Protocol (VTP)?
server, client, and transparent
Which Cisco IOS CDP show command displays the interface on which Cisco Discovery Protocol is enabled?
show cdp interface
Which Layer 2 devices implement the Spanning Tree Protocol (STP) feature?
switches
Which of the bridges and switches uses Application-Specific Integrated Circuits (ASIC's) for faster internal processing?
switches
Which command would you use to determine if all seven layers of OSI reference model are operational between a local and remote host, and gain login access to the remote host?
telnet
Which Cisco IOS command is used to reset Cisco Discovery Protocol (CDP) traffic counters to zero?
the clear cdp counters privileged EXEC command
Which Cisco IOS command is used to save the startup configuration files in the NVRAM to the flash memory of the switch?
the copy startup-configuration flash command
Which interface configuration mode command will enable the administratively down interface?
the no shutdown command
Which Cisco IOS show command displays information on the Cisco router's flash memory?
the show flash command
What do switches use for Local Area Network (LAN) segmentation?
virtual LANs (VLANs)
