Which network service is responsible for hiding internal network resources by changing the source address of every outbound packet?, NFS, NAT, Samba, SMB, Which protocol is responsible for logical addressing and delivery of packets?, IP, UDP, ICMP, TCP, Which TCP/IP setting is not required if you want to communicate on your local LAN by IP address only?, DNS, IP address, Subnet mask, Default gateway, Which protocol is responsible for error reporting and status information?, IP, UDP, TCP, ICMP, Which port is used by SMTP?, 443, 25, 110, 23, Which network service is responsible for allowing Microsoft clients access to the file system on a UNIX server?, Samba, NAT, SMB, NFS, What is the default subnet mask for a class C network?, 255.0.0.0, 225.225.0.0, 255.255.255.0, 225.255.255.255, Which address is reserved for internal loopback functions?, 0.0.0.0, 127.0.0.1, 1.0.0.1, 121.0.0.1, Which address is reserved for internal loopback functions?, 121.0.0.1, 127.0.0.1, 1.0.0.1, 0.0.0.0, Which protocol is responsible for connection-oriented communication?, IP, ICMP, UDP, TCP, Which layer of the OSI model does the IP protocol run at?, Layer 2, Layer 4, Layer 5, Layer 3, A network administrator implements a change on a switch to fix a network issue. According to the troubleshooting methodology, what should the network administrator do next?, Duplicate the problem, if possible in a lab environment., Document all findings in a final report., Implement preventative measures., Identify potential effects of the change., A network administrator must configure a wireless controller to allow authentication for devices that do not support EAP. Once configured, client authentication must be automatic. However, unauthorized users should not be able to access network resources. Which of the following actions should the administrator take?, Configure the controller to support TLS., Require clients to use certificates to authenticate., Configure 802.1x on the controller and setup RADIUS., Enable PSK authentication on the controller., Most of a company’s network administrators are Windows operating system specialists. The company is cross training administrators to help perform periodic management and administrative tasks on Linux servers. This includes a mix of command-line and graphic utilities. Some of the administrators being trained are in remote offices. All trainers are in the company’s main office. The administrators being trained log on and work locally from a Linux server. The trainer will connect to the Linux server from a client computer. Both computers need to display the same screen and allow commands and utilities to be used from either computer. Which remote connection technology should the trainers use?, Telnet, RDP, VNC, SSH, A user reports their laptop cannot connect to the network. Which action is a network technician MOST likely to perform after establishing a theory of probable cause?, Determine if the user recently made changes., Search a knowledge base for related issues., Create an image of the laptop’s hard drive., Test connectivity to a remote server with ping., A network engineer is concerned about the security of sensitive east-west traffic flows. Which is the BEST option for addressing this concern?, Place firewalls between datacenter network segments., Place a firewall at the public/private network perimeter., Require TLS for customer connections to cloud resources., Configure site-to-site VPN for remote branch offices., A collection of connected LANs over a large geographic area, enabling devices in different locations to communicate., PAN (Personal Area Network), WAN (Wide Area Network), SAN (Storage Area Network), MAN (Metropolitan Area Network), CAN (Campus Area Network), WLAN (Wireless Local Area Network), Interconnection of devices near each other, such as in an office, organized around an individual, and often using Bluetooth connections., PAN (Personal Area Network), WAN (Wide Area Network), SAN (Storage Area Network), MAN (Metropolitan Area Network), CAN (Campus Area Network), WLAN (Wireless Local Area Network), Connected LANs over a relatively small geographic area, such as connecting all of a company’s buildings in the same location., PAN (Personal Area Network), WAN (Wide Area Network), SAN (Storage Area Network), MAN (Metropolitan Area Network), CAN (Campus Area Network), WLAN (Wireless Local Area Network), High-speed data network giving several LAN servers access to consolidated block-level storage, using either FC or iSCSI-based networks., PAN (Personal Area Network), WAN (Wide Area Network), SAN (Storage Area Network), MAN (Metropolitan Area Network), CAN (Campus Area Network), WLAN (Wireless Local Area Network), Which of the following is a limitation of vSwitch technology?, Network traffic cannot flow between vSwitches on the same host., Each vSwitch on a host must be configured to use the same physical NICs., Each host can only support one vSwitch with a maximum of 256 virtual ports., Each vSwitch on a host requires a minimum of two physical NICs., Which OSI layer uses segments as its PDU?, Physical, Network, Transport, Data Link, A company wants to deploy a new WLAN topology without running new electrical wiring. The solution has to support the 5Ghz band, MU-MIMO, and offer speeds of at least 2100 Mbps. The company wants to use a PoE solution providing at least 25W of power for a connected device. Which two components should be used? (Choose two.), A switch supporting the 802.3af standard, A switch supporting the 802.3at standard, An access point supporting the 802.11ac Wave 1 standard, An access point supporting the 802.11ac Wave 2 standard, A switch supporting the 801.x standard, An access point supporting the 802.11n standard, A company’s network is shown in the exhibit. The DHCP server is configured with a scope for each network. Clients in the 192.168.4.0 and 192.168.4.128 subnets are unable to lease addresses from the DHCP server. Clients in the 192.168.2.0 subnet are able to lease addresses. What should the company do?, Open UDP port 53 on each of the routers., Configure IP exclusions for the 192.168.4.0 and 192.168.4.128 subnets., Deploy a DHCP relay agent in the 192.168.2.0 subnet., Deploy DHCP relay agents in the 192.168.4.0 and 192.168.4.128 subnets., A user reports odd behavior when attempting to access network resources from their Windows laptop. While reviewing the laptop’s configuration, a network technician discovers that the hosts file has been modified. Which type of attack has the security administrator likely uncovered?, Domain hijacking, DNS poisoning, MAC spoofing, On-path attack, 10.1.1.32/28, 10.10.10.128/27, 172.16.1.0/27, 1.0.10.0/27, 10.10.10.0/30, A company has deployed a new Microsoft Windows server behind a firewall. A systems administrator has been experiencing problems querying and modifying items in Active Directory from a remote location using an LDAP-based application. Which protocol should be allowed through the firewall?, UDP port 53, UDP port 69, TCP port 22, TCP port 636, TCP port 3389, A network technician wants to deploy a new virtual firewall. The firewall has to support three interfaces: G0/0, G0/1 and G0/2. What should the technician configure at the VM level for these interfaces?, iSCSI, vNIC, VLAN, Trunk, A branch office has been allocated the subnet of 192.168.1.64/26. Which three IP addresses can be used for user devices at this location? (Choose three.), 192.168.1.65, 192.168.1.254, 192.168.1.221, 192.168.1.98, 192.168.1.127, 192.168.1.111, Which of the following is used to create point-to-multipoint tunnels by encapsulating Layer 2 traffic for transmission over a Layer 3 underlay network?, Generic Routing Encapsulation (GRE), Quality of Service (QoS), Switch Virtual Interface (SVI), Virtual extensible LAN (VXLAN), Which statement describes traffic shaping?, Excess traffic is marked with a decreased priority., Excess traffic is immediately dropped., Excess traffic is returned to the sending node., Excess traffic is buffered until bandwidth is available., A company has its own comms rooms and an on-premises data center containing all its servers and network devices. A network engineer wants to add some cloud on-demand solutions to the existing infrastructure. Which cloud model should the company use?, Private, Public, Hybrid, CASB, What does a router use when routes from different routing protocols exist for the same destination?, Shortest Path First, Latency, Hop count, Administrative distance, Threat of flooding causes a company to move large vertical filing cabinets from the basement to the main office area. Users start complaining of problems connecting to the WLAN and delayed response from the network. Network analysis shows a high level of corrupted packets. What is the most likely cause?, Interference, Absorption, Attenuation, Reflection, A company has deployed a new access point. A network administrator wants to proactively monitor the number of connected clients and available resources using a secure protocol. What Layer 7 network protocol should be used?, SMTP, Telnet, SNMP, SSH, A network administrator must configure a wireless controller to allow authentication for devices that do not support EAP. Once configured, client authentication must be automatic. However, unauthorized users should not be able to access network resources. Which of the following actions should the administrator take?, Configure 802.1x on the controller and setup RADIUS., Configure the controller to support TLS., Enable PSK authentication on the controller., Require clients to use certificates to authenticate., Following a disaster, a network administrator is attempting to prioritize system restores. What should the admin do FIRST?, Check the RTO., Verify the MTBF., Check the MTTR., Verify the RPO., A company has two access points, as shown in the exhibit. Users report intermittent access issues. What could the company do to fix the problem? (Choose two.), Assign a different SSID to AP1., Assign AP1 to channel 11., Change the authentication method on AP1., Change to 5 GHz., Change the overlapping area to 5%., Users who work in remote branches report performance issues when trying to access applications hosted in the corporate data center. A network engineer has been asked to evaluate the reports and recommend an application aware solution that will include latency, packet loss, and jitter when computing optimal data paths. Which technology should the engineer recommend?, Infrastructure as code (IaC), Software-defined wide area networking (SD-WAN), Virtual extensible local area network (VXLAN), Dual stack, A technician has configured a new SSID on an AP using the 5GHz frequency. He has connected to it with a mobile phone. A test laptop is unable to show the new SSID in the list of available networks. What would be the MOST likely reason for that?, The laptop has a driver issue., There is an issue with the AP., There is a pre-shared key mismatch between the AP and the laptop., The laptop has a single-band wireless card., A consultant is helping set up an office in a remote rural area. The office needs a high bandwidth WAN link with the main office, which is located several hundred miles away. Which type of transmission medium should the consultant recommend?, Copper, Fiber optic, Wireless (cellular), Satellite, Users complain that as they walk from one location to another in an office complex, they lose wireless connectivity. What should a network administrator do to troubleshoot this issue?, Configure unique SSIDs per WAP., Ensure a low signal-to-noise ratio., Architect overlapping wireless cells., Increase WAP transmit power., Which two are benefits of mesh-connected distribution routers? (Select TWO.), Multipathing, Load balancing, Bridging, NIC teaming, Simplified routing, Which routing protocol requires each node to build a complete network map? (Open Shortest Path First (OSPF) requires each node to build a complete network map.), BGP, EIGRP, RIP, OSPF, A company wants to support multiple client computers running an application installed on a computer that runs Windows Server 2016. The clients should be able to take advantage of the memory and processor resources on the server. Each client will have a unique data set. Which technology should the company use?, RDP, VPN, VNC, SSH, A company opens new warehouse space on its company campus. Wiring out to devices uses Cat 5e UTP cable. Several devices experience communication problems. After extensive testing, the problem is determined to be crosstalk. The company needs to correct the problem. What should the company do?, Replace the failing cables with Cat 5e STP cables., Replace the 110 punchdown block with a 66 punchdown block., Replace all cabling with fiber optic cable., Replace the failing cables with Cat 6 cables., Which is the BEST option for increasing availability of a network’s gateway router group?, NTP, RADIUS, FHRP, STP, A network engineer is troubleshooting a network performance issue. Which tool can the engineer use to view packet headers and content in ASCII or hex?, tcpdump, nmap, netstat, NetFlow, Which network architecture allows for access or sharing of resources in a network by the same host?, Peer‐to‐peer, Hybrid topology, Client‐server, LAN

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