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A network administrator is adding a new LAN to a branch office. The new LAN must support 10 connected devices. What is the smallest network mask that the network administrator can use for the new network?
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What technique is used with UTP cable to help protect against signal interference from crosstalk?
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CCNA1
FINALS pt.3
| Question | Answer |
|---|---|
| A network administrator is adding a new LAN to a branch office. The new LAN must support 10 connected devices. What is the smallest network mask that the network administrator can use for the new network? | 255.255.255.240 |
| What technique is used with UTP cable to help protect against signal interference from crosstalk? | twisting the wires together into pairs |
| A client packet is received by a server. The packet has a destination port number of 22. What service is the client requesting? | SSH |
| What characteristic describes an IPS? | a network device that filters access and traffic coming into a network |
| An intrusion prevention system (IPS) monitors incoming and outgoing traffic looking for malware, network attack signatures, and more. If it recognizes a threat, it can immediately stop it. | IPS |
| What service is provided by DHCP? | Dynamically assigns IP addresses to end and intermediary devices. |
| Which wireless technology has low-power and low-data rate requirements making it popular in IoT environments? | Zigbee |
| is a specification used for low-data rate, low-power communications. It is intended for applications that require short-range, low data-rates and long battery life. | Zigbee |
| What two ICMPv6 message types must be permitted through IPv6 access control lists to allow resolution of Layer 3 addresses to Layer 2 MAC addresses? (Choose two.) | neighbor solicitations, neighbor advertisements |
| A client is using SLAAC to obtain an IPv6 address for its interface. After an address has been generated and applied to the interface, what must the client do before it can begin to use this IPv6 address? | It must send an ICMPv6 Neighbor Solicitation message to ensure that the address is not already in use on the network. |
| An organization is assigned an IPv6 address block of 2001:db8:0:ca00::/56. How many subnets can be created without using bits in the interface ID space? | 256 |
| What subnet mask is needed if an IPv4 network has 40 devices that need IP addresses and address space is not to be wasted? | 255.255.255.192 |
| What is a benefit of using cloud computing in networking? | Network capabilities are extended without requiring investment in new infrastructure, personnel, or software. |
| Which two statements are correct about MAC and IP addresses during data transmission if NAT is not involved? (Choose two.) | Destination IP addresses in a packet header remain constant along the entire path to a target host. & Destination and source MAC addresses have local significance and change every time a frame goes from one LAN to another. |
| What is one main characteristic of the data link layer? | It shields the upper layer protocol from being aware of the physical medium to be used in the communication. |
| What are three characteristics of the CSMA/CD process? (Choose three.) 1. | A device listens and waits until the media is not busy before transmitting. |
| What are three characteristics of the CSMA/CD process? (Choose three.)2. | After detecting a collision, hosts can attempt to resume transmission after a random time delay has expired. |
| What are three characteristics of the CSMA/CD process? (Choose three.)3. | All of the devices on a segment see data that passes on the network medium. |
| Which information does the show startup-config command display? | the contents of the saved configuration file in the NVRAM |
| Which two commands can be used on a Windows host to display the routing table? (Choose two.) | route print, netstat -r |
| What are two functions that are provided by the network layer? (Choose two.) | directing data packets to destination hosts on other networks & providing end devices with a unique network identifier |
| Which two statements describe features of an IPv4 routing table on a router? (Choose two.) | It stores information about routes derived from the active router interfaces. & If a default static route is configured in the router, an entry will be included in the routing table with source code S . |
| command is used to display the routing table of the router. | show ip route |
| What characteristic describes a VPN? | a tunneling protocol that provides remote users with secure access into the network of an organization |
| Why would a Layer 2 switch need an IP address? | to enable the switch to be managed remotely |
| A user sends an HTTP request to a web server on a remote network. During encapsulation for this request, what information is added to the address field of a frame to indicate the destination? | the MAC address of the default gateway |
| the process of converting information from one format into another acceptable for transformation | message encoding |
| the process of placing one message format inside another message format | message sizing |
| the process of breaking up a long message into individual pieces before being sent over the network | message encapsulation |
| What is an advantage to using a protocol that is defined by an open standard? | It encourages competition and promotes choices. |
| Data is being sent from a source PC to a destination server. Which three statements correctly describe the function of TCP or UDP in this situation? (Choose three.)1. | The source port field identifies the running application or service that will handle data returning to the PC. |
| Data is being sent from a source PC to a destination server. Which three statements correctly describe the function of TCP or UDP in this situation? (Choose three.) 2. | UDP segments are encapsulated within IP packets for transport across the network. |
| Data is being sent from a source PC to a destination server. Which three statements correctly describe the function of TCP or UDP in this situation? (Choose three.)3. | The UDP destination port number identifies the application or service on the server which will handle the data. |
| received by a sender before transmitting more segments in a session | acknowledgement |
| method of managing segments of data loss | retransmission |
| used to identify missing segment of dats | sequence number |
| number of bytes a destination device can accept and process at one time | window size |
| What two pieces of information are displayed in the output of the show ip interface brief command? (Choose two.) | IP addresses, Layer 1 statuses |
| Which tool should the technician use with administrator privileges in order to locate where the issue is in the network? | tracert |
| Which value, that is contained in an IPv4 header field, is decremented by each router that receives a packet? | Time-to-Live |
| A network technician is researching the use of fiber optic cabling in a new technology center. Which two issues should be considered before implementing fiber optic media? (1) | Fiber optic cabling requires different termination and splicing expertise from what copper cabling requires. |
| A network technician is researching the use of fiber optic cabling in a new technology center. Which two issues should be considered before implementing fiber optic media? (2) | Fiber optic provides higher data capacity but is more expensive than copper cabling. |
| A user is executing a tracert to a remote device. At what point would a router, which is in the path to the destination device, stop forwarding the packet? | when the value in the TTL field reaches zero |
| Users report that the network access is slow. After questioning the employees, the network administrator learned that one employee downloaded a third-party scanning program for the printer. What type of malware? | worm |
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