Networking fundamentals — page 2
Objective 109 of LPIC-1 Exam 102-500, worth 23.33% of the exam. This is page 2 of 4 of its question list; page one carries the full objective summary.
- Share of the exam
- 23.33%
- Questions in a real sitting
- roughly 14 of 60
- Questions in this bank
- 70
- Signed for by a person
- 0
- Machine-checked only
- 70
Partly checked. None of the 70 questions here has been read against the cited source by a person. 70 questions have been checked against their cited clause by an automated pass — which is not the same thing, and is not a signature.
Only questions a person has signed for are used in mock exams here. That is the whole difference between the two kinds of checking above.
How these questions are written — where each question comes from, what the verification ledger records, and what happens when one is found wrong.
What this objective covers
The 70 questions written for this objective cite 3 LPI exam objectives (109.1, 109.2, 109.3) and 28 manual pages (dig(1), getent(1), host(1), hostname(1), hostnamectl(1), hosts(5), icmp(7), ifup(8), ip(8), ip-address(8), ip-link(8), ip-neighbour(8), ip-route(8), ipv6(7), nc(1), netstat(8), networkctl(1), nm-settings-keyfile(5), nmcli(1), nsswitch.conf(5), ping(8), resolv.conf(5), resolved.conf(5), ss(8), systemd.network(5), tracepath(8), traceroute(8), traceroute6(8)).
They break down as 49 single-answer questions, 9 choose-several questions and 12 type-the-answer questions.
Drill this objective
The trainer can run a short practice set drawn from this objective alone, which is what the weight column above is for: revise the heavy objectives first.
Practise Networking fundamentals
Questions on this objective (page 2 of 4)
- Which two statements about UDP are correct? (Choose two.) machine-checked
- Which three commands display the system's routing table, including the default gateway? (Choose three.) machine-checked
- On a workstation, `ping 8.8.8.8` succeeds with normal round-trip times, but `ping www.example.com` fails immediately with a message that the name or service is not known. Which two causes are consistent with these symptoms? (Choose two.) machine-checked
- Type the iproute2 command, with no interface argument, that displays the IP addresses currently assigned to all network interfaces. machine-checked
- Type the iproute2 command that prints the kernel routing table, the modern replacement for `route -n`. machine-checked
- Write the subnet mask for the prefix /26 in dotted-quad notation. machine-checked
- A host is configured as 192.168.7.100/28. Write the broadcast address of its subnet in dotted-quad notation. machine-checked
- Give the absolute path of the file that traditionally lists the DNS servers the local resolver library should query. machine-checked
- After a firewall rule was added that drops every ICMP packet arriving at a gateway, small requests over a VPN tunnel still work but large HTTP downloads through the tunnel hang after a few kilobytes. Which ICMP message is the firewall swallowing? machine-checked
- Which two statements correctly describe how IPv6 differs from IPv4? (Choose two.) machine-checked
- You have changed a setting on the NetworkManager profile named lan-static with `nmcli connection modify lan-static ipv4.dns 10.0.0.53`, but resolution still uses the old server. Which command applies the stored profile to the running interface without restarting the NetworkManager service? machine-checked
- A server currently gets its address by DHCP through the NetworkManager profile office. It must instead keep the fixed address 192.0.2.50/24 with gateway 192.0.2.1 across reboots. Which command line configures the profile correctly? machine-checked
- A laptop running NetworkManager has never connected to the wireless network cafe-guest, which is protected by the passphrase Sunflower9. Which command joins it and creates a profile for future use? machine-checked
- On a workstation whose interfaces are managed by NetworkManager, which two approaches make an address change survive a reboot? (Choose two.) machine-checked
- Before boarding a flight you want to switch off the wireless radio with nmcli, leaving the wired connection working. Which command does that? machine-checked
- You are adding a local entry so that the names printsrv.example.com and printsrv both resolve to 10.20.0.9 without DNS. Which line has the correct /etc/hosts syntax? machine-checked
- A system running systemd-resolved carries the line `hosts: resolve [!UNAVAIL=return] files dns` in /etc/nsswitch.conf. What is the effect of the bracketed action? machine-checked
- Users type short names such as `wiki` and `build`, and the resolver must try them in corp.example.com first and lab.example.com second. Which /etc/resolv.conf directive expresses that? machine-checked
- A minimal server uses systemd-networkd. Which file and content give interface enp1s0 the static address 10.0.0.10/24 with gateway 10.0.0.1? machine-checked
- On a host using systemd-networkd you need to see, for every link, whether networkd has actually configured it or is leaving it unmanaged. Which command reports that? machine-checked
Practise Networking fundamentals
The other objectives in LPIC-1 Exam 102-500
- 105. Shells and shell scripting — 15% of the exam
- 106. User interfaces and desktops — 6.67% of the exam
- 107. Administrative tasks — 20% of the exam
- 108. Essential system services — 18.33% of the exam
- 110. Security — 16.67% of the exam