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Learn the selection criteria of network devices and WAN technologies to meet network requirements. Troubleshoot end-to-end connectivity in a small business.
PPP authentication is performed at which OSI layer?
What is a characteristic of data flow processing in SDN?
With which layers of the OSI model do the PPP control protocols interface?
It SPAN Terminology which refers to the traffic that enters the switch.
A _____ topology shows the physical layout of the devices connected to the network.
A newer and faster technology considered to be part of 4G technology.
Which command runs several other show commands in order to generate many pages of detailed troubleshooting information?
What mitigation plan is best for thwarting a DoS attack that is creating a switch buffer overflow?
A general term for Internet services from a mobile phone or from any device that uses the same technology.
It is a queuing algorithm which extends the standard WFQ functionality to provide support for user-defined traffic classes.
Which model is the only QoS model with no mechanism to classify packets?
Which statement correctly describes a WAN technology?
The OSI reference model describes how information from a software application in one computer moves through a network medium to a software application in another computer.
Simple Network Management Protocol (SNMP) was developed to allow administrators to manage nodes such as servers, workstations, routers, switches, and security appliances, on an IP network.
One of the new challenges associated with the rapid growth of the IoT is securing new devices with varying level of security.
A network engineer is troubleshooting a network that has recently been updated with a new routing protocol, but the network is not working as expected. The engineer is comparing the running configuration from before and after the change was made. Which approach to troubleshooting the problem is the engineer using?
Which additional functionality is available on an interface when the encapsulation is changed from HDLC to PPP?
What is Fog computing?
The show ip route and show ipv6 route commands are used to display the routing table in a router to learn the directly connected neighbors, more remote devices (through learned routes), and the routing protocols that have been configured.
What does the FIFO queuing stands for?
It is an ever increasing requirement of networks today
How many levels of priority are possible when using class of service (CoS) marking on frames?
_____ It is the default encapsulation type on point-to-point connections, dedicated links, and circuit-switched connections when the link uses two Cisco devices.
A network architecture that virtualizes the network.
Which troubleshooting tool can be used to pinpoint the distance to a break in a network cable?
For a data center, what is the difference in the server virtualization data traffic compared with the traditional client-server model?
The _____ is considered to be the brains of the ACI architecture.
_____ A newer and faster technology considered to be part of 4G technology.
Generic Routing Encapsulation (GRE) is one example of a basic, non-secure, site-to-site VPN tunneling protocol.
What happens when an edge router using IntServ QoS determines that the data pathway cannot support the level of QoS requested?
A purpose-built hardware solution for integrating cloud computing and data center management.
Under which condition does congestion occur on a converged network with voice, video, and data traffic?
Which WAN technology uses a fixed payload of 48 bytes and is transported across both switched and permanent virtual circuits?
What range of IP addresses is represented by the network and wildcard mask 192.168.70.0 0.0.0.127?
IntServ provides a way to deliver the end-to-end QoS that real-time applications require by explicitly managing network resources to provide QoS to specific user packet streams, sometimes called microflows.
A client calls the support desk and says this to a technician: "I have just started my computer and attempted to check e-mail. The error 0x800ccc0d was displayed. However, I was able to connect to network drives and access the Internet." Which statement would describe the status of this issue?
One of the new challenges associated with the rapid growth of the IoT is integrating many devices from different vendors with custom applications.
The show cdp neighbors detail command is used to obtain detailed information about directly connected Cisco neighbor devices.
A construction firm is building a power plant at a remote and isolated mine site and needs to connect the data network of the plant to the corporate network. Which public technology is the most suitable to meet the connection needs?
In the 802.1X standard, the client attempting to access the network is referred to as the supplicant.
SDN is a network architecture that has been developed to virtualize the network.
What TCP port is used by BGP to exchange messages between routers?
SNMP is an application layer protocol that provides a message format for communication between managers and agents
It is a type of DHCP where the attacker floods the DHCP server with bogus DHCP requests and eventually leases all of the available IP addresses in the DHCP server pool.
What is a characteristic of a WAN?
_____ This is a point established in a building or complex to separate customer equipment from service provider equipment.
Which IPv4 address range covers all IP addresses that match the ACL filter specified by 172.16.2.0 with wildcard mask 0.0.1.255?
Which medium do service providers use to transmit data over WAN connections with SONET, SDH, and DWDM?
It is a type of telnet attack where the attacker continuously requests Telnet connections in an attempt to render the Telnet service unavailable and preventing an administrator from remotely accessing a switch.
One of the new challenges associated with the rapid growth of the IoT is improving the Internet connections from homes
CBWFQ extends the standard WFQ functionality to provide support for user-defined traffic classes.
_____ It is a WAN protocol that provides Provides router-to-router and host-to-network connections over synchronous and asynchronous circuits.
To verify the state of a GRE tunnel, use the show interface tunnel command.
The show ip interface brief and show ipv6 interface brief commands are used to display the up or down status and IP address of all interfaces on a device.
This is typically regarded as the brains of a device.
Which statement describes the physical topology for a LAN?
Which PPP option enables load balancing on PPP-enabled interfaces that connect to a single destination?
What is an SNMP management agent?
Cloud computing and virtualization are different terms that refer to the same thing.
VLAN attacks are controlled by disabling DTP and following basic guidelines for configuring trunk ports.
What is the protocol that provides ISPs the ability to send PPP frames over DSL networks?
DHCP is the protocol that automatically assigns a host a valid IP address out of a DHCP pool.
_____ It is a networking device that provides internetworking and WAN access interface ports that are used to connect to the service provider network.
A _____ is software that creates and runs VM instances and can be installed directly on hardware or run as an application on an OS.
Dynamic Multipoint VPN (DMVPN) is a Cisco software solution for building multiple VPNs in an easy, dynamic, and scalable manner.
Which network traffic management technology is a basic element in SDN implementations?
Delay-sensitive data such as voice is added to a priority queue so that it can be sent first (before packets in other queues).
A network engineer is investigating an access issue to a web server. The web server can access the Internet and the local clients can open the web pages. However, outside clients cannot access the web pages. What is the most likely cause of the problem?
When a PPPoE configuration is being verified, which command can be used to verify the MTU size and encapsulation type configured on a Cisco router?
A site-to-site VPN is created when devices on both sides of the VPN connection are aware of the VPN configuration in advance.
Satellite Internet services are used in locations where land-based Internet access is not available, or for temporary installations that are mobile.
The Cisco Discovery Protocol (CDP) is a proprietary Layer 2 link discovery protocol.
It is a SPAN Terminology which refers to the traffic that leaves the switch.
Packets are classified into different flows based on header information including the ToS value.
What does the WFQ automated scheduling method stands for?
It is a type of DHCP attack where the attacker configures a fake DHCP server on the network to issue IP addresses to clients.
_____ A general term for Internet services from a mobile phone or from any device that uses the same technology.
What happens when the memory queue of a device fills up and new network traffic is received?
How can SNMP access be restricted to a specific SNMP manager?
It is a queuing algorithm also known as first-come, first-served (FCFS) queuing, involves buffering and forwarding of packets in the order of arrival.
Network traffic can be marked at both Layer 2 and Layer 3 for QoS..
Use the show ip sla configuration operation-number command to display configuration values including all defaults for IP SLA operations or for a specific operation.
It is a type of telnet attack where the attacker may use a list of common passwords, dictionary words, and variations of words to discover the administrative password
Which protocol is used by PPP to provide authentication and protection from playback attacks?
Which statement describes a characteristic of standard IPv4 ACLs?
The show monitor command is used to verify the SPAN session.
a type of network that establishes a dedicated circuit (or channel) between nodes and terminals before the users may communicate.
A network engineer is troubleshooting an unsuccessful PPP multilink connection between two routers. The multilink interface has been created and assigned a number, the interface has been enabled for multilink PPP, and the interface has been assigned a multilink group number that matches the group assigned to the member physical serial interfaces. The physical serial interfaces have also been enabled for PPP multilink. Which additional command should to be issued on the multilink interface?
Which statement describes a difference between the operation of inbound and outbound ACLs?
External BGP is the routing protocol used between routers in different autonomous systems.
It is a queuing algorithm which feature brings strict priority queuing (PQ) to CBWFQ.
Which feature sends simulated data across the network and measures performance between multiple network locations?
The _____ QoS model specifies a simple and scalable mechanism for classifying and managing network traffic and providing QoS guarantees on modern IP networks.
An attack has been launched within a company and a host name has been identified as the source. What command can a network technician use to determine the IP address assigned to the host name?
Which Cloud computing service would be best for an organization that needs to collaboratively create applications and deliver them over the web?
Today, over __% of things in the physical world are still not connected to the Internet. Select the answer that will complete the statement.
These switches provide an application-aware switching fabric and work with an APIC to manage the virtual and physical network infrastructure.
Which mode is used to configure SNMP?
Internal BGP is the routing protocol used between routers in the same AS.
After gathering symptoms, if the troubleshooter determines that the problem is located outside the control of the organization, what is the next step?
It is a queuing algorithm which is an automated scheduling method that provides fair bandwidth allocation to all network traffic.
Also called the forwarding plane, this plane is typically the switch fabric connecting the various network ports on a device.
An administrator has configured an access list on R1 to allow SSH administrative access from host 172.16.1.100. Which command correctly applies the ACL?
The IoT refers to the network of billons of physical objects accessible through the Internet as we continue to connect the unconnected.
Which PPP protocol allows a device to specify an IP address for routing over the PPP link?
What is an advantage offered by GRE tunnels?
DHCP _____ is a mitigation technique to prevent rogue DHCP servers from providing false IP configuration parameters.
One of the new challenges associated with the rapid growth of the IoT is increasing the CPU power of computers
Which statement describes the QoS classification and marking tools?
The use of BGP is most appropriate when an AS has connections to multiple autonomous systems.
When is the most appropriate time to measure network operations to establish a network performance baseline?
Which public WAN technology provides security by using encrypted tunnels over Internet connections?
______ are specialized, handheld devices designed for testing the various types of data communication cabling.
What is a characteristic of the two-tier spine-leaf topology of the Cisco ACI fabric architecture?
Which service is enabled on a Cisco router by default that can reveal significant information about the router and potentially make it more vulnerable to attack?
_____ diagrams keep track of the location, function, and status of devices on the network.
A network administrator issues the telnet www.cisco.com 25 command on the workstation. What is the purpose of this command?
One of the new challenges associated with the rapid growth of the IoT is developing better routing protocols for new devices
An _____ is a collection of end-point groups (EPG), their connections, and the policies that define those connections.
Which component in a traditional infrastructure device provides Layer 2 and Layer 3 functions to create data paths within a network?
Packets are assigned to user-defined classes based on matches to criteria such as protocols, ACLs, and input interfaces.
MAC address table flooding attacks are addressed with port security.
Which one of the WAN technologies is inadequate for video traffic but operates adequately for voice traffic?
What is an example of an M2M connection?
This type of SDN uses a centralized controller that has knowledge of all devices in the network.
What function does NCP perform in the establishment of a PPP session?
Which type of traffic does Cisco recommend be placed in the strict priority queue (PQ) when low latency queuing (LLQ) is being used?
Which term describes the data exchanges between virtual servers in a data center?
A _____ topology illustrates how devices are logically connected to the network, meaning how devices actually transfer data across the network when communicating with other devices.
The _____ transmits bits from one computer to another and regulates the transmission of a stream of bits over the physical medium.
_____ A type of digital modem used with high-speed DSL or cable Internet service.
How many "things" are predicted to be interconnected on the Internet by 2020?
What is the default queuing method used on the LAN interfaces of Cisco devices?
_____ allows source and destination ports to be in different switches.
What is a disadvantage of leased lines?
What equipment at the cable service provider office connects the office to the subscriber locations?
The LLQ feature brings strict priority queuing (PQ) to CBWFQ.
It is an SPAN Terminology which refers to the port that is monitored with use of the SPAN feature answer Source (SPAN) port
Packets are forwarded in the order in which they are received.
Which queuing method provides user-defined traffic classes where each traffic class has a FIFO queue?
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