| Book Name | URL Link |
| CCNA-1 Introduction to Networks | Link |
| CCNA-2 Routing & Switching Essentials | Link |
| CCNA-3 Scaling Networks | Link |
| CCNA-4 Connecting Networks | Link |
| A Router resides at what layer of the TCP/IP model(NOT OSI MODEL) | Transport Application Internet Session Network Interface |
| A router will divide: Collision Domains, Broadcast Domains, & Logical Networks | |
| When a switch receives information off the network it performs two basic operations = Source MAC examined, then destination MAC is examined to see if it is the forward/filter table | |
| Which port role will the switch closest to the root bridge have, provided that it also has the lowest path clost to the root bridge. | Root Port |
| Shodan is a search engine. Shodan collects data mostly on web servers. | https://www.shodan.io/ |
| PacketLife | https://packetlife.net/ |
| 802.1x | Identity Based Networking |
| ARP | Address Resolution Protocol |
| BDPU | Bridge Protocol Data Units |
| DAI | Dynamic ARP Inspection |
| EIGRP | Enhanced Internet Gateway Routing Protocol |
| Etherchannel | Ethernet Aggretation |
| HSRP | Hot Standby Router Protocol |
| LACP | Link Aggregation Control Protocol |
| Location of Interfaces | Location of Interfaces |
| MPLS | Multiprotocol Label Switching |
| OSPF | Open Shortest Path First |
| OSI Model | Open Systems Interconnection |
| Passwords | Password commands and data |
| Port Security | Port Security |
| RIP | Routing Information Protocol |
| QoS | Quality of Service |
| Snooping | Prevents attacks from other DHCP servers |
| Spanning-Tree | Prevents Loops |
| Static Routes | Manually configured network routing |
| Summary Routes | Grouping of routes together |
| VLAN | Virtual Local Area Network |
| Netacademy Into to Cybersecurity SiteRip Link |
| Which value, that is contained in an IPv4 header field, is decremented by each router that receives a packet? TTL |
| Which IPv4 address can a host use to ping the loopback interface? 127.0.0.1 |
| Within a production network, what is the purpose of configuring a switch with a default gateway address? The default gateway address is used to forward packets originating from the switch to remote networks. |
| A network administrator enters the following command sequence on a Cisco 3560 switch. What is the purpose of these commands? Switch(config)# interface gigabitethernet 0/1 Switch(config-if)# no switchport - to make the Gi0/1 port a routed port |
| A DCE device provides clocking for data terminal equipment. T |
| MAC address is a physical address defined at layer 2 of the OSI model. T |
| A router resides at what layer of the TCP/IP Model? Internet |
| A router's primary role is to: Determine the best path to send packets and forward them accordingly |
| A router will divide _________. - Broadcast Domains |
| A switch maintains a separate forwarding/MAC table for each VLAN. F |
| Broadcasts at Layer 2 of the OSI model are visible to all in the broadcast domain. T |
| By default, all ports on a switch are assigned to a vlan. T |
| What is a result of using the service password-encryption command on a Cisco network device? all passwords are not shown in the switch configuration |
| Which command is used to remove only VLAN 20 from the switch? no vlan 20 |
| What are two types of router interfaces? (Choose TWO) LAN WAN |
| Rollover - PC to Cisco AUX |
| RJ45 - PC Cisco LAN |
| Dynamic routing protocols are more secure than static routes. False |
| How can the Cisco Discovery Protocol be use? to determine the hardware platform of the device / to determine the IP addresses of connected Cisco devices / to allow a switch to discover the devices that are connected to its ports |
| How does STP prevent forwarding loops at OSI Layer 2? Port Blocking |
| In switch B, the revision number is 10; you deleted 3 VLANs one by one, what will be the final revision number? 13 |
| Attenuation - Signal Loss |
| Dispersion - distortion |
| Which requirement must be followed in the design of an IPv4 addressing scheme? each IP address must be unique within the local network |
| Which method of data transfer allows information to be sent and received at the same time? full duplex |
| Which interface is the default Switched Virtual Interface (SVI) on a Cisco switch? vlan1 |
| NAT Inside Local Address |
| NAT Inside Global Address - This address is a publicly routable |
| NAT Outside Local Address - |
| NAT Outside Global Address - Public |
| A modem is typically a DCE device. - TCE |
| A router is a DTE device by default - True |
| VLAN operates on what layer of OSI layer model? - DataLink Layer |
| What is the default Hold Time for HSRP? 10 |
| What is the maximum cable length for STP? 100m |
| What layer of the OSI model defines logical addressing? - Natwork |
| What layer of the OSI model does VLAN frame tagging occur? 2 |
| What type of cable connects a terminal and a console port? - Rollover |
| When a switch receives information off the network it performs two basic operations, what are they? - The source MAC is examined to see if the sender is known, then the destination MAC is examined to see if the destination is in the forward/filter table |
| Which command can you enter to allow Telnet to be supported in addition to SSH? - transport input telnet ssh |
| Which destination address is used in an ARP request frame? ffff.ffff.ffff |
| Which layer of the OSI model defines file encryption? - Presentation |
| Which layer of the OSI model is responsible for setting up, managing and tearing down communications? - Transport |
| Which network device is used to separate broadcast domains? -Router |
| Which statement about the nature of NAT overload is true? - applies one to many |
| ou installed a new Cisco switch in your network. How many default |
| Vlans does the new switch contain? 5 |
| Why would a summarized static route be configured on a router? to reduce the size of the routing table |
| Which is a valid summary route for networks 192.168.8.0/22, 192.168.12.0/22, and 192.168.16.0/22? 192.168.0.0/19 - The third octet of the network addresses represented in binary are:00001000 00001100 00010000 The common leftmost bits are 000 in all three octets. Thus, the summary route will be 192.168.0.0/19. |
| When a range of ports is being configured for EtherChannel, which mode will configure PAgP so that it initiates the EtherChannel negotiation? -desirable. The command channel-group mode active enables LACP unconditionally, and the command channel-group mode passive enables LACP only if the port receives an LACP packet from another device. The command channel-group mode desirable enables PAgP unconditionally, and the command channel-group mode auto enables PAgP only if the port receives a PAgP packet from another device. |
| A bridge ID is determined from - Priority and MAC address. |
| A collision domain can be divided (broken up) by OSI model layer 1 and 2 devices. False |
| A dvantages of OSPF over RIPv1 (mark all that apply): - Ubdates are only sent when changes occur/better load balancing / There is no hop limit |
| A port that is in a blocking state is: Listening to BPDUs only |
| A port that is in a "forwarding state" is: Listens to BPDUs and passes ethernet traffic |
| A port that is in a "listening state" is: Listening to BPDUs Only |
| A root bridge must identify a root port False |
| For Ethernet connections, routers will ARP for the destination MAC T |
| Summerize Networks:192.168.1.0, 192.168.3.0, 192.168.4.0 - 255.255.248.0 |
| If you want two VLANs to communicate with each other, you will need: - A Router |
| To configure a VLAN trunk you run this command: switchport mode trunk vlan {vlan id} False |
| By default trunks will forward all VLAN tagged traffic True |
| This Inter-VLAN method uses a router without VLAN configurations - Traditoinal |
| Which of the following is correct concerning VLAN configurations that |
| implement a Router-On-A-Stick? - Troubleshooting is more complex |
| When using the Traditional Method of routing, the port that connects to |
| the router from the switch needs to be configured as a _________. Access Port |
| What command will show what ports are assigned to what VLAN? - Show vlan brief |
| Load balancing occurs when: There are multiple routes in the routing table to reach a remote network with the same metric values. |
| Native Vlan mismatches between switches could be a security risk. T |
| A network administrator is designing the layout of a new wireless network - interfaces/security/coverage |
| On a Cisco 2950 switch, what is the command to enable a trunk line - switchport mode trunk |
| What addressing information is recorded by a switch to build its MAC address table? the source Layer 2 address of incomfing packets |
| 192.168.10.0 /24 Subnet into 6 networks. What is network address for Subnet id #2 and /value. --Remember that it starts with Subnet 0 192.168.10.64 /27 |
| Given the network 10.10.10.0 /27 How many hosts address are there for each network? 32 |
| When using Hot Swap Routing Protocol (HSRP), you give the clients a virtual ip address of the gateway and not the actual interface IP. t |
| A Root Bridge Switch originates the BPDU's and sends them to all of the other switches, once the STP algorithm has converged (or is in a stable state).t |
| Which port role will the switch closest to the root bridge have, provided that it also has the lowest path cost to the root bridge. Root Port |
| Which of the following are issues with Layer 1 redundancy. Choose all that apply. broadcast storms/mac table instability/multiple unicast frames received by a host. |
| A switch will flood a broadcast frame out all ports except the port that it came in on. t |
| Routers learn routes through dynamic routing protocols and manual entry. t |
| Routers operate at layer 3 of the OSI model.t |
| Subnet 192.168.10.45 /26 into four subnets. |
| What is the Network ID for subnet #2? 192.168.10.64 |
| The Console password protects access to: User Exec |
| The Enable password protects access to: Privileged Exec |
| Throughput is the measure of: The measured transfer of bits across a media over a given period of time |
| What command can be used on a Windows PC to see the IP configuration of the computer? ipcofig |
| A VLAN usually shares a subnet with another VLAN. False |
| What command will create a VLAN Trunk line? switchport mode trunk |
| What command will display the actual path that traffic (packets) travel? traceroute |
| What command will show you the IP address that is set on the first fast Ethernet port? all 3 |
| What command will turn an interface on? no shutdown |
| What command would be used to assign a switch's port to a specific vlan? switchport access vlan 9 |
| What is the definition of bandwidth? the amount of data than can flow from one place to another in a given amount of time |
| Which address or addresses does a Layer 3 switch use to make forwarding decisions? MAC and IP address |
| Which of one the following does a switch use to make an entry in the forwarding table (aka Mac address Table)? Source MAC address |
| Which protocol was Cisco proprietary, with Cisco given out an informational RFP for this protocol? EIGRP |
| You check the IP address of a host and see 140.62.134.101/19 What is the Network ID? 140.62.128.0 |
| What command will prevent all unencrypted passwords from displaying in plain text in a configuration file? (config)# service password-encryption |
| What layer of the TCP/IP protocol model determines the best path through the network? internet |
| Which logical address is used for delivery of data to a remote network? destination IP address |
| What is the primary purpose of ARP? resolve IPv4 addresses to MAC addresses |
| Which answer best describes the IP address 192.168.10.15 /30 ? broadcast address |
| How many host addresses are available on the 192.168.44.128 /26 network? 62 |
| A network administrator subnets the 192.168.15.0 /24 network into subnets with /26 masks. How many equal-sized subnets are created? 4 |
| What is the first action in the boot sequence when a switch is powered on? load a POST |
| What is the meaning of the number 10 in the "encapsulation dot1Q 10 native" router subinterface command? the VLAN ID |
| What type of static route is created when the next-hop IP address and exit interface are specified? fully specified static route |
| Why would a summarized static route be configured on a router? to reduce the size of the routing table |
| True/False: Access lists are used only to deny traffic through an interface. False |
| An Access List will filter traffic going through the router. True |
| An IPv4 address contains two pieces of information, the Net ID and the Host ID. True |
| A router's primary role is to: A router will divide logical networks/broadcast tomains/collision domains |
| True/False: A standard access control list should be placed as close as possible to the destination. True |
| True/False: By default, all ports on a switch are assigned to a VLAN. True |
| True/False: By default, all router network interfaces are administratively down. True |
| Examine the following command, what type of access list is being used? access-list 10 permit 172.16.10.3 0.0.0.255 (unknown) |
| True/False: Extended ACLs can only be used on traffic received (Rx) by an interface. True |
| Given the following networks, choose the best option that summarizes the networks. Networks: 64.132.94.32, 64.132.90.64, 64.132.92.0 answer is NOT 64.132.90.0 255.255.240.0 |
| Given the following networks, chose the best option that summarizes the networks. Networks:192.168.1.0, 192.168.3.0, 192.168.4.0 - 192.168.0.0 255.255.248.0 |
| What is the result when the DHCP servers are not operational in a network? - workstations are assigned IP addresses in the 169.254.0.0/16 network |
| How does a host determine that an IP network is remote? - somthing with ANDing |
| If a packet arrives at a router that has a destination IP address that is not found in the routing table the router will: Drop the packet |
| If you want two VLANs to communicate with each other, you will need: a router |
| In 802.1Q trunking, what is the default native VLAN ID? VLAN1 |
| True/False: To implement Inter-VLAN routing for VLAN 10 using the router-on-a-stick method, this command must be entered on the switch: encapsulation dot1q 10 False |
| True/False: To configure a VLAN trunk you run this command: switchport mode trunk vlan (vlan id) |
| What is the problem if a computer automatically configures an IP address in the 169.254.x.x address range? dhcp server broke |
| Which of the following is correct concerning VLAN configurations that implement a Router-On-A-Stick? the router requires more physical ports???? |
| What function does the range of private IPv4 addresses perform? - allows multiple networks to all use the same addresses without conflict |
| Which of the following statements about JSON is true? JSON is used for storing information / JSON is similar but more complicated than XML WRONGGGGGGGGGGGGGGGGGGGGG / JSON is used to describe structured data including arrays/ JSON uses predefined tags or angle brackets () to delimit markup text |
| What items are required to configure a static route? (select all that apply) nexthop/subnet mask/router interface ip/pool name/destination network |
| What items listed are required to configure a DHCP pool? (select all that apply) dhcp network address and mask/pool name/default router/range of included ip |
| What is the effect of replacing a hub with a switch? Collision domains increase in number. Broadcast domains remain the same. |