networking final
Which command can an administrator execute to determine what interface a router will use to reach remote networks
show ip route
Which type of address does a switch use to build the MAC address table?
source MAC address
A host needs to reach another host on a remote network, but the ARP cache has no mapping entries. To what destination address will the host send an ARP request
the broadcast MAC address
Which two criteria are used to help select a network medium for a network?
the distance the selected medium can successfully carry a signal the environment where the selected medium is to be installed
Which factor does not influence throughput?
the operating system that is used by end devices
A host needs to reach another host on a remote network, but the ARP cache has no mapping entries. To what destination address will
the subnet broadcast IP address
What is the purpose of the subnet mask in conjunction with an IP address?
to determine the subnet to which the host belongs
Which network migration technique encapsulates IPv6 packets inside IPv4 packets to carry them over IPv4 network infrastructures
tunneling
When troubleshooting network problems, where would a network administrator find the configuration information, such as the computer names and the IP addresses that are used?
logical topology diagram
At which layer of the OSI model would a logical address be added during encapsulation?
network layer
Which solution allows external users to access only an internal FTP server on a private network
port forwarding
Which three attacks exploit human behavior
pretexting phishing vishing
Which type of access is secured on a Cisco router or switch with the enable secret command
privileged EXEC
A network administrator establishes a connection to a switch via SSH. What characteristic uniquely describes the SSH connection
remote access to a switch where data is encrypted during the session
Which wireless RF band do IEEE 802.11b/g devices use
2.4 GHz
A DHCP server is used to assign IP addresses dynamically to the hosts on a network. The address pool is configured with 192.168.10.0/24. There are 3 printers on this network that need to use reserved static IP addresses from the pool. How many IP addresses in the pool are left to be assigned to other hosts
251
A student is uploading files from a phone to a server on another network. Which layer of the TCP/IP model is responsible for providing an addressing scheme to transmit the data between the devices?
internet
Which two devices are considered end devices?
laptop,printer
Which three commands are used to set up secure access to a router through a connection to the console interface? (Choose three.)
line console 0 login password cisco
Refer to the exhibit. A newly purchased client laptop has just connected to the local area network. The local area network is using a wireless router that is providing dynamic addressing as shown. Which IP address does the laptop use as a destination address when requesting a dynamically assigned address?
255.255.255.255
Which two statements describe characteristics of network addresses?
A MAC address is also referred to as a physical address because it is permanently embedded on the NIC. A valid public IPv4 or IPv6 address is needed in order for devices to communicate over the internet.
What are three characteristics of multicast transmission
A single packet can be sent to a group of hosts. Multicast transmission can be used by routers to exchange routing information. The range of 224.0.0.0 to 224.0.0.255 is reserved to reach multicast groups on a local network.
Which statement correctly describes data transmission at the transport layer
Both UDP and TCP use port numbers
Refer to the exhibit. Which router port connects to the modem provided by the service provider
C
An intruder tries a large number of possibilities in rapid succession to guess a password. As a result, other users on the network are
DDoS
A user is configuring a wireless access point and wants to prevent any neighbors from discovering the network. What action does the user need to take
Disable SSID broadcast
Which two types of interference may affect the data throughput on UTP cables?
EMI crosstalk
What is a characteristic of a peer-to-peer application?
Each device using the application provides a user interface and runs a background service.
When configuring SSH on a router to implement secure network management, a network engineer has issued the login local and transport input ssh line vty commands. What three additional configuration actions have to be performed to complete the SSH configuration? (Choose three.)
Generate the asymmetric RSA keys. Configure the correct IP domain name. Create a valid local username and password database
While a network security product is being deployed, a customizable list of allowable protocols is shown. Which three protocols should be allowed to provide for the use of email on a network
IMAP4 SMTP POP3
Which two files, if found, are copied into RAM as a router with the default configuration register setting boots up
IOS image file startup configuration
Using a systematic troubleshooting approach, a help desk technician suspects a problem at Layer 3 of the OSI model. In gathering information, which two questions are associated with Layer 3? (Choose two.)
Is the PC configured for DHCP? From the PC, is the default gateway reachable using the ping command
What are two benefits of using a layered network model?
It assists in protocol design. It prevents technology in one layer from affecting other layers.
What is an inherent security vulnerability of SSID broadcasting
It broadcasts the identity of the network
What is the effect of setting the security mode to WEP on a small wireless router
It encrypts data between the wireless client and the access point
Using default settings, what is the next step in the switch boot sequence after the IOS loads from flash
Locate and load the startup-config file from NVRAM
Which type of device filtering can be enabled on some wireless access points or wireless routers
MAC address
During a move, employee workstations were disconnected from the network and reconnected in new offices. However, after the move a few workstations cannot get a valid IP address. What should be checked first to identify the root cause of the problem
Make sure the cables are functional and properly plugged
A consumer places a smartphone close to a pay terminal at a store and the shopping charge is successfully paid. Which type of wireless technology was used?
NFC
What is an advantage of using standards to develop and implement protocols?
Products from different manufacturers can interoperate successfully.
A client device on an Ethernet segment needs an IP address in order to communicate on the network. A DHCP server with IP address 192.168.1.1 has been configured and enabled on the network. How will a client device obtain a usable IP address for this network
Send a DHCPDISCOVER message to physical address FF-FF-FF-FF-FF-FF
What are two wiring schemes defined by the TIA/EIA organization for Ethernet installation in homes and businesses?
T568A T568B
A customer calls the help line to report a computer problem. The help line technician responds and works with the customer for some time. However, the technician cannot identify the root cause of the problem. What should the technician do to help the customer
Tell the customer that a ticket is created and another technician will contact the user soon
If the default gateway is configured incorrectly on the host, what is the impact on communications
The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks
If the default gateway is configured incorrectly on a host, what is the impact on communications
The host is unable to communicate with hosts on remote networks
A computer has to send a packet to a destination host in the same LAN. How will the packet be sent?
The packet will be sent directly to the destination host
Refer to the exhibit. What three facts can be determined from the viewable output of the show ip interface brief command? (Choose three.)
The switch can be remotely managed. One device is attached to a physical interface. The default SVI has been configured
What are two features of protocols used within the TCP/IP protocol stack
UDP is used when an application must be delivered as quickly as possible and some loss of data can be tolerated. TCP mechanisms retransmit data when an acknowledgment is not received from the destination system within a set period of time
What type of technology converts analog voice signals into digital data
VoIP
A network administrator issues the Switch(config)# Interface FastEthernet 0/1 command on a Cisco switch. Which term is used to describe the "0/1" part in the command
argument
An intruder tries a large number of possibilities in rapid succession to guess a password. As a result, other users on the network are locked out. What type of attack has occurred
brute force
In software defined network architecture, what function is removed from network devices and performed by an SDN controller
control plane
What are two common media used in networks?
copper fiber
A network administrator installs a network device that focuses on interconnecting independent local networks. At which layer of devices does this technology reside?
distribution
A data center has recently updated a physical server to host multiple operating systems on a single CPU. The data center can now provide each customer with a separate web server without having to allocate an actual discrete server for each customer. What is the networking trend that is being implemented by the data center in this situation
virtualization
A small accounting office is setting up a wireless network to connect end devices and to provide internet access. In which two scenarios does a wireless router perform Network Address Translation (NAT)?
when a host is sending packets to the ISP in order to request a speed increase for Internet services when a host is sending packets to a remote site owned by the manufacturer of the wireless router in order to request a digital copy of the device manual
A user is setting up a home wireless network. Which type of device must the user have in order to establish the wireless network and provide access to the internet for multiple home devices?
wireless router
